payment-ready until 2026-08-24
On-chain and real-world data intelligence for autonomous agents: 57 x402-native endpoints (wallet enrichment, sanctions/AML screening, DeFi/market data, LLM inference, stock intel, email/DNS/security tooling). USDC on Base mainnet, Ed25519-signed responses. Canonical machine-readable catalogue: https://api.hergertsynthora.com/.well-known/x402.json
Pay from $0.005 to $0.32 per request in USDC on Base, settled onchain via the x402 protocol, no signup, no API key needed.
measured since 2026-06-29 (start of our harvest window) · $0 all-time · last settled 2026-08-17
ASSESSMENT
updated 4h agoEvidence-backed signals, not a single score. Click any chip for the proof. Measured values stay read-only; unknown is honest.
reliability 100%
- uptime 24h
- -
- uptime 7d
- -
- uptime 30d
- -
- uptime 90d
- -
- response p95
- 57ms
- avg response
- 57ms
- total checks
- 1
Measured on the unpaid 402 handshake, not the paid call. A service can 402 correctly and still fail after payment.
compliance A (13/14): declares the current x402 version (2)
13 of 14 x402 conformance checks pass; failing: declares the current x402 version (2). Full checklist below.
price $0.005 to $0.32 (p36 in Data)
- price (min)
- $0.005
- price (max)
- $0.32
- category percentile (min)
- p36 in Data
- category percentile (max)
- p90 in Data
- endpoints / prices
- 49 / 7
- model
- tiered
- stability
- 100%
risk clean
No deterministic risk flag. Risk fires only on an exact blocklist match, or a reserved-brand name with a mismatched verified payTo. Never from low uptime, a high price, or a model guess.
- domain age
- 74d
- registrar
- IONOS SE
- hosting
- custom
- domain created
- 2026-06-04
Identity facts, not a risk score.
traction $0.00 30d · 0 buyers
- volume 30d
- $0.00
- buyers 30d
- 0
- settlements 30d
- 0
- measured since
- 2026-06-29 (start of our harvest window)
- last settlement
- 2026-08-17
- top buyer share
- -
- trend 7d vs 30d
- -
- networks
- eip155:8453
- volume all-time
- $0
- settlements all-time
- 0
- median settlement 30d
- -
- max settlement 30d
- -
- settled via
- -
Conservative undercount: only USDC settlements via facilitators we measure are counted. A measured floor, not an estimate.
Top buyer share is a concentration signal, not part of the ranking score.
WHAT IT DOES
ai-derivedNo AI synthesis has been produced for this service yet.
ENDPOINTS
| METHOD | PATH | DESCRIPTION | PRICE | NETWORK | ASSET | 402 CHANNEL |
|---|---|---|---|---|---|---|
| GET | /v1/agentcard | Agent Card Validator (A2A): given an Agent Card URL or JSON, deterministically validates it against the A2A spec — required fields, skill schemas, endpoint reachability, security schemes, provider transparency — and returns a compatibility_score, schema_errors and warnings. The trust layer for the agent economy. Deterministic, Ed25519-signed. SYNTHORA. | $0.05 | Base | USDC | header |
| GET | /v1/amlscreen | Screen a crypto wallet address against global sanctions and illicit-activity intelligence. Cross-checks the on-chain Chainalysis sanctions oracle, TRM screening, OFAC SDN and GoPlus address flags (mixer, phishing, laundering), returning a sanctioned yes/no, matched lists and an AML risk score. Use it for AML compliance, sanctions screening and KYT before onboarding or paying an address. Ed25519-signed. | $0.10 | Base | USDC | header |
| GET | /v1/binance-ticker24 | SYNTHORA binance-ticker24: 24h ticker that places the current price INSIDE its own 24h range — not just the last trade, but where it sits between the period high and low, with the distance to each end and the direction of travel. Deterministic, Ed25519-signed. Input: trading pair symbol (e.g. BTCUSDT). | $0.05 | Base | USDC | header |
| GET | /v1/bridgerisk | Assess the security risk of a cross-chain bridge before routing funds through it. Combines live DefiLlama TVL and audit status with the full bridge-hack incident history and known-exploit analysis into a 0-100 risk score, a safe/caution/high_risk/critical signal and explicit risk factors. Use it for bridge risk and cross-chain due diligence. Ed25519-signed. | $0.10 | Base | USDC | header |
| GET | /v1/businessrisk | Counterparty business-risk verdict: one call fuses OFAC/EU sanctions screening, on-chain wallet reputation, and token/pool contract risk into a single weighted risk_score (0-100), a kill/pivot/proceed verdict, and reason_codes naming which sub-signal drove it. Weights: sanctions 0.50, wallet 0.30, token 0.20, renormalised if a leg is unavailable; a sanctions hit is a hard KILL floor. Degrades gracefully — a failed sub-check is dropped, never crashes the verdict. Deterministic, no LLM, Ed25519-signed. 0.05 USDC via x402 on Base. SYNTHORA. | $0.05 | Base | USDC | header |
| GET | /v1/codeaudit | Multi-LLM Smart Contract Audit: 3 independent LLM perspectives (security, logic, gas) + static pattern scan on Solidity/Vyper source. Severity: clean/low/medium/high/critical. Ed25519-signed, publishable on-chain. POST {"source":"pragma solidity...","language":"solidity"} or {"address":"0x..","chain":"base"} for Sourcify-verified contracts. | $0.32 | Base | USDC | header |
| GET | /v1/coingecko-crypto-price-history | Historical daily price, market-cap and volume time-series for a coin in any fiat currency from CoinGecko's keyless market_chart endpoint (JSON). Serves autonomous crypto-vs-fiat trend agents, backtesting bots, and agent-to-agent analytics needing multi-day price series without a key. Pay-per-call via x402 on Base. No charge on upstream failure. | $0.05 | Base | USDC | header |
| GET | /v1/commodity-macro | Gold, silver and major macro FX reference in one call for portfolio-hedging agents. ECB + metals reference. Free source. $0.05 USDC via x402 on Base. SYNTHORA. Pay-per-call via x402 on Base. No charge on upstream failure. | $0.05 | Base | USDC | header |
| GET | /v1/contractwatch | SYNTHORA contractwatch: on-chain contract safety verdict: honeypot, rug-pull, hidden mint and owner privileges, correlated across independent sources and signed. | $0.32 | Base | USDC | header |
| GET | /v1/cryptonews | SYNTHORA cryptonews: real-time crypto news headlines with sentiment, ranked by importance. Aggregates keyless RSS feeds (CryptoPanic, CoinDesk, CoinTelegraph, Decrypt, Bitcoin Magazine) into deduplicated, freshness-and-source-weighted top headlines, each scored with a lexical bull/bear sentiment (very_bullish.very_bearish) plus an overall market sentiment. Filter by asset (BTC, ETH, SOL, XRP, and more) to get only headlines about that coin. Built for trading and quant agents that need a cheap, fast crypto news + sentiment pulse. Ed25519-signed. | $0.10 | Base | USDC | header |
| GET | /v1/defidata | SYNTHORA defidata: deFi market-data feed: perp open interest, funding rate, mark price and a directional signal across top assets (BTC/ETH/SOL/…), plus optional per-asset verdict. Deterministic, Ed25519-signed. SYNTHORA. First 3 calls FREE per wallet — send header 'X-WALLET: 0x<your Base address>' (no payment). | $0.05 | Base | USDC | header |
| GET | /v1/deliver | Audit a domain's email deliverability and sender reputation. Checks SPF, DKIM selectors, DMARC policy strength (reject/quarantine/none), BIMI, MX and PTR records, returning a spam score and prioritized fixes. Use it to assess inbox placement, email authentication and domain reputation before sending. Deterministic DNS-only, Ed25519-signed. First 3 calls FREE per wallet — send header X-WALLET: 0x<your Base address> (no payment); then \ per call. | $0.05 | Base | USDC | header |
| GET | /v1/derivbundle | 002 call (cheaper + fewer round-trips than buying each separately) 5 live datasets, partial degradation (never fails whole), Ed25519-signed First 3 calls FREE per wallet via X-WALLET header SYNTHORA. | $0.32 | Base | USDC | header |
| GET | /v1/dex-pair-price | Real-time on-chain DEX price, liquidity and 24h volume for any pool/token on any chain via GeckoTerminal. For DeFi routing agents. Free source. SYNTHORA. First 3 calls FREE per wallet — send header X-WALLET: 0x<addr>. No charge on upstream failure. | $0.05 | Base | USDC | header |
| GET | /v1/fear-greed | SYNTHORA fear-greed: indice de miedo/codicia con la VARIACION frente a ayer y el cruce de banda, no solo el valor. Fuente: alternative.me, fechada y con hash. | $0.05 | Base | USDC | body (v1 style) |
| GET | /v1/forex-convert | Convert any amount between 30+ currencies at real ECB rates. For payment and treasury agents pricing cross-currency. Free source. $0.05 USDC via x402 on Base. SYNTHORA. Pay-per-call via x402 on Base. No charge on upstream failure. | $0.05 | Base | USDC | header |
| GET | /v1/forex-latest | SYNTHORA forex-latest: fX reference rate contrasted between the ECB official fixing (set once daily) and the live market rate, reporting the separation between them: how far the market has moved since the fixing, which is the only actionable part of an exchange rate. | $0.05 | Base | USDC | header |
| GET | /v1/funding-rates | Real-time perpetual funding rates + mark price for any Binance futures symbol. Essential for delta-neutral and basis-trading agents. Free source, deterministic, instant JSON. SYNTHORA. First 3 calls FREE per wallet — send header X-WALLET: 0x<addr>. No charge on upstream failure. | $0.05 | Base | USDC | header |
| GET | /v1/identity-risk | SYNTHORA identity-risk: brand-impersonation verdict (AUTHENTIC / DOUBTFUL / ACTIVE_IMPERSONATION) over decentralised social identities, correlated across independent sources. | $0.32 | Base | USDC | header |
| GET | /v1/lifi-bridge-route-quote | Returns the best cross-chain bridge/swap route for a given source chain, destination chain, tokens and amount from LI.FI, including chosen bridge tool, estimated output, fees and gas. Powers autonomous cross-chain agents and agent-to-agent treasury movers that pick the cheapest, fastest bridge path for a transfer. Pay-per-call via x402 on Base. No charge on upstream failure. | $0.10 | Base | USDC | header |
| GET | /v1/llm-fast | SYNTHORA LLM Gateway FAST: OpenAI-compatible /v1/chat/completions pay-per-call, no API keys. Fast free-tier models (llama-3.1-8b class) with automatic upstream failover, Ed25519-signed. 0.005 USDC via x402 on Base. POST {"messages":[{"role":"user","content":"..."}]} (or {"prompt":"..."}). | $0.005 | Base | USDC | header |
| GET | /v1/llm-smart | SYNTHORA LLM Gateway SMART: OpenAI-compatible /v1/chat/completions pay-per-call, no API keys. Large free-tier models (llama-3.3-70b class) with automatic upstream failover, Ed25519-signed. 0.005 USDC via x402 on Base. POST {"messages":[{"role":"user","content":"..."}]} (or {"prompt":"..."}). | $0.005 | Base | USDC | header |
| GET | /v1/mailcheck | Verify whether an email address is real and safe to send to. Checks RFC syntax, live MX records, catch-all and disposable/temporary domains, role accounts (info@, admin@), free providers and common typos, returning a deliverability status and confidence score. Use it to validate and enrich contacts, clean email lists and prevent bounces. Deterministic, Ed25519-signed. First 3 calls FREE per wallet — send header 'X-WALLET: 0x<your Base address>' (no payment); then per call. | $0.05 | Base | USDC | header |
| GET | /v1/market-dominance | SYNTHORA market-dominance: BTC and ETH market dominance contrasted between TWO independent providers (CoinGecko and Coinlore), reporting the discrepancy in percentage points and a confidence grade — you get not just the number but whether the number can be trusted. Deterministic, Ed25519-signed. $0.05 USDC on Base. | $0.05 | Base | USDC | header |
| GET | /v1/mcpscan | MCP Server Security Scan: probes an MCP server (JSON-RPC initialize + tools/list) and applies a deterministic rule engine over its tools — embedded secrets, dangerous shell/exec/filesystem capabilities, prompt-injection surface, hidden unicode, permissive input schemas, and auth/TLS/CORS headers — returning a security_score + findings[]. The trust layer for the agent economy. Zero-LLM, Ed25519-signed. 0.05 USDC via x402 on Base. SYNTHORA. | $0.05 | Base | USDC | header |
| GET | /v1/mtasts | SYNTHORA mtasts: sMTP transport-security audit: MTA-STS (RFC 8461) + TLS-RPT (RFC 8460). Resolves the policy DNS records, fetches and parses the well-known policy file, cross-validates the policy mx: patterns against the domain's real MX, and returns an enforce/report verdict. Complements SPF/DKIM/DMARC auditing with the TLS transport layer. Deterministic, Ed25519-signed. SYNTHORA. | $0.05 | Base | USDC | header |
| GET | /v1/ohlcv-candles | Real-time and historical OHLCV candles (open/high/low/close/volume) for any crypto pair, any interval. For backtesting and signal agents. Free source. SYNTHORA. First 3 calls FREE per wallet — send header X-WALLET: 0x<addr>. No charge on upstream failure. | $0.05 | Base | USDC | header |
| GET | /v1/onchain | SYNTHORA Onchain Primitives: multichain (Base/Ethereum/Polygon/Arbitrum/Optimism) transaction receipts, tx lookup, wallet nonce, contract/proxy (EIP-1967) detection, ENS resolution, ERC20 + native balances, contract introspection. Deterministic, Ed25519-signed. First 3 calls FREE per wallet — send header 'X-WALLET: 0x<your Base address>' (no payment). | $0.05 | Base | USDC | header |
| GET | /v1/openinterest | SYNTHORA Open Interest Oracle: live perpetual futures open interest, funding rates, mark price, premium and crowded long/short signal for 230+ assets via Hyperliquid. Ed25519-signed. First 3 calls FREE per wallet — send header 'X-WALLET: 0x<your Base address>' (no payment). | $0.10 | Base | USDC | header |
| GET | /v1/payto-preflight | x402 PayTo Pre-Flight: verify a payTo address against the live registry before paying. Detects payTo hijacking, stale endpoints and unknown resources. Deterministic, <200ms, no external network. 0.005 USDC via x402 on Base. SYNTHORA. | $0.005 | Base | USDC | header |
| GET | /v1/perps | SYNTHORA Perps Snapshot: live Hyperliquid perpetual futures snapshot per asset — mark price, oracle price, hourly funding rate (with 8h and APR derivations), open interest (USD), premium and 24h volume for 230+ perps, keyless. Complements the Open Interest oracle with the raw single-shot data a trading agent needs. Ed25519-signed. | $0.02 | Base | USDC | header |
| GET | /v1/polymarket-markets | SYNTHORA polymarket-markets: mercados de prediccion filtrados sobre dos paginas fusionadas; si no hay coincidencias lo dice en vez de devolver ruido. | $0.05 | Base | USDC | header |
| GET | /v1/prediction | Prediction Market Probability Oracle — real Polymarket odds (p_yes/p_no, volume, liquidity), not LLM guesses. POST a question; Ed25519-signed. For agents needing calibrated event probabilities. | $0.10 | Base | USDC | header |
| GET | /v1/prediction-markets | SYNTHORA prediction-markets: top prediction markets from Polymarket and Kalshi — implied probability, bid-ask spread, liquidity, volume, open interest and freshness seal (UTC timestamp). Filter with {"limit": N, "source": "all|polymarket|kalshi", "min_liquidity": usd}. For autonomous trading, political-risk and allocation agents. $0.05 USDC via x402 on Base. First 3 calls FREE per wallet — send header X-WALLET: 0x<addr>. No charge on upstream failure. | $0.05 | Base | USDC | header |
| GET | /v1/protocol-revenue | Real-time fee revenue and 24h/7d/30d earnings for any DeFi protocol via DefiLlama Fees API. | $0.05 | Base | USDC | header |
| GET | /v1/protocol-tvl | SYNTHORA protocol-tvl: tVL de un protocolo con su CUOTA sobre el TVL total y su puesto en el ranking: contexto que el dato suelto no da. | $0.02 | Base | USDC | header |
| GET | /v1/registry-watch | SYNTHORA registry-watch: pay-per-event feed of signed Ed25519 deltas from the x402/M2M endpoint registry — new and changed endpoints, payTos and listings. Pull with {"since": "<cursor|ISO>", "slug": "<slug>", "limit": <=200}; each delta is individually signed and the full response is signed again (double provenance). $0.03 USDC on Base. | $0.03 | Base | USDC | header |
| GET | /v1/regwatch | SYNTHORA regwatch: x402 Registry Watch: signed Ed25519 deltas of the x402/A2A endpoint registry (payTo/listings/endpoints). Pay-per-event feed pull. POST {"since":"<cursor|ISO>","slug":"<slug>","limit":<=200}. | $0.05 | Base | USDC | header |
| GET | /v1/rpc-ens | ENS forward/reverse resolution: name->address and address->name. Deterministic, Ed25519-signed. First 3 calls FREE per wallet — send header X-WALLET: 0x<addr>. No charge on upstream failure. SYNTHORA. | $0.005 | Base | USDC | header |
| GET | /v1/sanctions-screen | SYNTHORA sanctions-screen: sanctions screening with MATCH / CLEAR verdict over 4 official downloads (OFAC SDN primary and alias lists, UN, OpenSanctions). Multilingual, tested on Cyrillic transliterations. | $0.05 | Base | USDC | header |
| GET | /v1/slippage | Slippage and price-impact oracle for any crypto pair: estimates expected slippage, price impact and effective execution price for a given trade size from live order-book depth and liquidity. Answers 'expected slippage for this swap', 'price impact of my order', 'orderbook liquidity / slippage', 'how much will I move the market' for execution and routing agents. Deterministic, Ed25519-signed. First 3 calls FREE per wallet — send header X-WALLET: 0x<your Base address>. No charge on upstream failure. SYNTHORA. | $0.10 | Base | USDC | header |
| GET | /v1/tokenrisk | Detect honeypots, rug-pulls and malicious tokens before buying or approving. Combines GoPlus token-security (honeypot simulation, buy/sell tax, mintable, pausable, hidden owner, LP concentration, holder count) with bytecode analysis and owner-renounce checks into a safe/caution/risky/rug_pull verdict. Use it for token security, rug-pull detection and smart-contract risk. Ed25519-signed. | $0.32 | Base | USDC | header |
| GET | /v1/translate | SYNTHORA translate: translate any text between 100+ languages with automatic source-language detection. Preserves tone, formatting and placeholders. Deterministic JSON output, Ed25519-signed. SYNTHORA. | $0.05 | Base | USDC | header |
| GET | /v1/txintent | Tx Intent Classifier: decodes the REAL intent of an on-chain transaction (Base/Ethereum) and returns an Ed25519-signed risk verdict (safe/review/suspicious/dangerous). Catches unlimited approvals, opaque selectors, value-to-contract, reverted tx. POST {"tx_hash":"0x..","chain":"base"} or {"to":"0x..","data":"0x.."}. | $0.10 | Base | USDC | header |
| GET | /v1/usgs-realtime-streamflow | Returns real-time instantaneous streamflow (discharge) and gage height for any USGS water-monitoring site as JSON from USGS Water Services, keyless. Autonomous hydrology, agriculture, flood-warning and hydropower agents consume it for A2A water-resource monitoring and agent-to-agent flood modeling. Ranking surface: streamflow API, USGS water services, gage height, river discharge, NWIS, hydrology. Pay-per-call via x402 on Base. No charge on upstream failure. | $0.05 | Base | USDC | header |
| GET | /v1/wallet-enrich | Wallet enrichment for any EVM wallet (0x address or ENS name) in one call: 0-100 risk score with low/medium/high level, sanctions exposure screening (OFAC SDN wallet lists: Tornado Cash, Lazarus, Garantex), on-chain activity on Ethereum + Base (native balance, transaction count, contract-vs-EOA detection) and labels (ENS reverse record, GoPlus address-security flags: phishing, mixer, cybercrime, money laundering, blacklist). Built for agents that need wallet enrichment + risk + sanctions data before paying, onboarding or transacting with a counterparty. No charge on service failure. Ed25519-signed. $0.15 USDC per call via x402 on Base. Free trial: 3 calls per wallet with header X-WALLET. | $0.15 | Base | USDC | header |
| GET | /v1/walletrep | Score the risk and reputation of any EVM wallet address before you transact with it. Combines on-chain sanctions screening (Chainalysis oracle, TRM, OFAC) and GoPlus address-security flags (phishing, blacklist, mixer, malicious activity) with contract-vs-EOA detection, transaction history and balance into a 0-100 score and clean/suspicious/blacklisted tier. Use it for wallet screening, counterparty due diligence and KYT. Ed25519-signed. | $0.32 | Base | USDC | header |
| GET | /v1/websearch | SYNTHORA websearch: keyless web search for AI agents. Give it a natural-language query and it returns ranked organic results (title, url, snippet) drawn from live multi-source search (DuckDuckGo HTML/Lite plus public SearXNG instances, with automatic fallback so it never returns empty when one source flakes). Optionally it also fetches the top result and extracts the main content as clean, token-budgeted markdown (answer_extract), so an agent can read the page without running its own crawler, browser or scraper. Use it to answer real-world questions, gather fresh facts, research a topic, find documentation or check what a site says, without maintaining a search index or paying for Google/Bing/Serper API keys. Resilient (short timeouts, multi-source), SSRF-hardened,. | $0.05 | Base | USDC | header |
| GET | /v1/yahoo-equity-delayed-quote | Delayed real-time quote and intraday OHLCV for any stock or ETF ticker (price, day high/low, 52-week range, volume) from Yahoo Finance's keyless chart endpoint (JSON). Powers autonomous equity-screening agents and agent-to-agent trading bots needing per-symbol quotes without an API key. Pay-per-call via x402 on Base. No charge on upstream failure. | $0.05 | Base | USDC | header |
49 endpoints
REQUEST / RESPONSE EXAMPLE
An unpaid request to GET /v1/agentcard returns HTTP 402 with the payment terms. Settle onchain via your facilitator, then retry with the X-Payment header.
// request
curl -i 'https://api.hergertsynthora.com/v1/agentcard'
// 402 response (captured by monitor) · 49 payloads · click to expand
[
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x10800a5a5B9d72251566EC651E862A8b4B427dE0",
"amount": "50000",
"scheme": "exact",
"network": "eip155:8453",
"mimeType": "application/json",
"resource": "https://api.hergertsynthora.com/v1/agentcard",
"description": "Agent Card Validator (A2A): given an Agent Card URL or JSON, deterministically validates it against the A2A spec — required fields, skill schemas, endpoint reachability, security schemes, provider transparency — and returns a compatibility_score, schema_errors and warnings. The trust layer for the agent economy. Deterministic, Ed25519-signed. 0.01 USDC via x402 on Base. SYNTHORA.",
"maxAmountRequired": "50000",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://api.hergertsynthora.com/v1/agentcard",
"iconUrl": "https://api.hergertsynthora.com/icon.svg",
"mimeType": "application/json",
"description": "Agent Card Validator (A2A): given an Agent Card URL or JSON, deterministically validates it against the A2A spec — required fields, skill schemas, endpoint reachability, security schemes, provider transparency — and returns a compatibility_score, schema_errors and warnings. The trust layer for the agent economy. Deterministic, Ed25519-signed. 0.01 USDC via x402 on Base. SYNTHORA.",
"serviceName": "SYNTHORA"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"card": {
"url": "https://example.org",
"name": "Demo Agent",
"skills": [
{
"id": "chat",
"name": "chat",
"description": "conversational"
}
],
"version": "1.0.0",
"description": "A2A agent card audit demo"
}
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"ok": true,
"niche": "agent_card",
"result": {
"signed": "ed25519",
"verdict": "buena",
"warnings": [
"falta campo recomendado: documentationUrl"
],
"skills_count": 1,
"schema_errors": [],
"a2a_conformant": true,
"endpoint_status": 200,
"pricing_declared": false,
"security_declared": true,
"compatibility_score": 82
}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object",
"properties": {
"url": {
"type": "string",
"description": "URL of the A2A Agent Card (.well-known/agent-card.json)"
},
"card": {
"type": "object",
"description": "Or paste the Agent Card JSON directly"
}
}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"ok": {
"type": "boolean"
},
"type": "object",
"niche": {
"type": "string"
}
}
}
}
}
}
},
"delivery": {
"note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
"order": "compute -> failure gate -> verify -> settle -> deliver",
"scope": "this covers service FAILURE, not verdict quality",
"policy": "no-charge-on-service-failure",
"verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
"behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
},
"signature": {
"alg": "ed25519",
"canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
"verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
"jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
"envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
"sigEncoding": "hex(64B raw)",
"publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
}
},
"x402Version": 2
},
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x10800a5a5B9d72251566EC651E862A8b4B427dE0",
"amount": "100000",
"scheme": "exact",
"network": "eip155:8453",
"mimeType": "application/json",
"resource": "https://api.hergertsynthora.com/v1/amlscreen",
"description": "Screen a crypto wallet address against global sanctions and illicit-activity intelligence. Cross-checks the on-chain Chainalysis sanctions oracle, TRM screening, OFAC SDN and GoPlus address flags (mixer, phishing, laundering), returning a sanctioned yes/no, matched lists and an AML risk score. Use it for AML compliance, sanctions screening and KYT before onboarding or paying an address. Ed25519-signed. 0.005 USDC on Base.",
"maxAmountRequired": "100000",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://api.hergertsynthora.com/v1/amlscreen",
"iconUrl": "https://api.hergertsynthora.com/icon.svg",
"mimeType": "application/json",
"description": "Screen a crypto wallet address against global sanctions and illicit-activity intelligence. Cross-checks the on-chain Chainalysis sanctions oracle, TRM screening, OFAC SDN and GoPlus address flags (mixer, phishing, laundering), returning a sanctioned yes/no, matched lists and an AML risk score. Use it for AML compliance, sanctions screening and KYT before onboarding or paying an address. Ed25519-signed. 0.005 USDC on Base.",
"serviceName": "SYNTHORA"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"address": "0x28C6c06298d514Db089934071355E5743bf21d60"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"ok": true,
"niche": "aml_screening",
"result": {
"hits": [],
"input": "0x...",
"signal": "clean",
"risk_score": 0,
"lists_checked": [
"CHAINALYSIS_ORACLE",
"TRM_SANCTIONS",
"OFAC_SDN_inline",
"GOPLUS_ADDRESS"
]
}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object",
"required": [],
"properties": {
"name": {
"type": "string",
"description": "Optional entity name for OFAC name search"
},
"address": {
"type": "string",
"description": "EVM address to screen (0x...)"
}
}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"ok": {
"type": "boolean"
},
"type": "object",
"niche": {
"type": "string"
}
}
}
}
}
}
},
"delivery": {
"note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
"order": "compute -> failure gate -> verify -> settle -> deliver",
"scope": "this covers service FAILURE, not verdict quality",
"policy": "no-charge-on-service-failure",
"verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
"behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
},
"signature": {
"alg": "ed25519",
"canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
"verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
"jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
"envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
"sigEncoding": "hex(64B raw)",
"publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
}
},
"x402Version": 2
},
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x10800a5a5B9d72251566EC651E862A8b4B427dE0",
"amount": "50000",
"scheme": "exact",
"network": "eip155:8453",
"mimeType": "application/json",
"resource": "https://api.hergertsynthora.com/v1/binance-ticker24",
"description": "SYNTHORA binance-ticker24: 24h ticker that places the current price INSIDE its own 24h range — not just the last trade, but where it sits between the period high and low, with the distance to each end and the direction of travel. Deterministic, Ed25519-signed. Input: trading pair symbol (e.g. BTCUSDT).",
"maxAmountRequired": "50000",
"maxTimeoutSeconds": 300
}
],
"freeTier": {
"note": "send header X-WALLET: 0x<your Base address> for a free trial",
"header": "X-WALLET",
"callsPerWallet": 3
},
"resource": {
"url": "https://api.hergertsynthora.com/v1/binance-ticker24",
"tags": [
"crypto",
"markets",
"derivatives",
"price",
"x402",
"signed-verdict"
],
"iconUrl": "https://api.hergertsynthora.com/icon.svg",
"mimeType": "application/json",
"description": "SYNTHORA binance-ticker24: 24h ticker that places the current price INSIDE its own 24h range — not just the last trade, but where it sits between the period high and low, with the distance to each end and the direction of travel. Deterministic, Ed25519-signed. Input: trading pair symbol (e.g. BTCUSDT).",
"serviceName": "SYNTHORA"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"symbol": "BTCUSDT"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"ok": true,
"niche": "binance_ticker24",
"result": {
"ask": 64690.01,
"bid": 64690,
"senal": "cotiza en el 91.94% del rango de 24 h",
"fuente": "<omitido en el ejemplo publico>",
"symbol": "BTCUSDT",
"low_24h": 63880,
"high_24h": 64760.99,
"open_24h": 64011.99,
"as_of_utc": "2026-08-05T16:31:23Z",
"last_price": 64690,
"latencia_s": 0.27,
"spread_pct": 0.00002,
"trades_24h": 2506551,
"volume_24h_quote": 838119043.6470296,
"price_change_pct_24h": 1.059,
"posicion_en_rango_24h_pct": 91.94
}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object",
"properties": {
"input": {
"type": "string",
"description": "SYNTHORA binance-ticker24: 24h ticker that places the current price INSIDE its own 24h range — not just the last trade, but where it sits between the period high and low, with the distance to each end and the direction of travel. Deterministic, Ed25519-signed. Input: trading pair symbol (e.g. BTCUSDT)."
}
}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"ok": {
"type": "boolean"
},
"type": "object",
"niche": {
"type": "string"
}
}
}
}
}
}
},
"delivery": {
"note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
"order": "compute -> failure gate -> verify -> settle -> deliver",
"scope": "this covers service FAILURE, not verdict quality",
"policy": "no-charge-on-service-failure",
"verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
"behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
},
"signature": {
"alg": "ed25519",
"canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
"verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
"jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
"envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
"sigEncoding": "hex(64B raw)",
"publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
}
},
"x402Version": 2
},
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x10800a5a5B9d72251566EC651E862A8b4B427dE0",
"amount": "100000",
"scheme": "exact",
"network": "eip155:8453",
"mimeType": "application/json",
"resource": "https://api.hergertsynthora.com/v1/bridgerisk",
"description": "Assess the security risk of a cross-chain bridge before routing funds through it. Combines live DefiLlama TVL and audit status with the full bridge-hack incident history and known-exploit analysis into a 0-100 risk score, a safe/caution/high_risk/critical signal and explicit risk factors. Use it for bridge risk and cross-chain due diligence. Ed25519-signed. 0.002 USDC on Base.",
"maxAmountRequired": "100000",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://api.hergertsynthora.com/v1/bridgerisk",
"iconUrl": "https://api.hergertsynthora.com/icon.svg",
"mimeType": "application/json",
"description": "Assess the security risk of a cross-chain bridge before routing funds through it. Combines live DefiLlama TVL and audit status with the full bridge-hack incident history and known-exploit analysis into a 0-100 risk score, a safe/caution/high_risk/critical signal and explicit risk factors. Use it for bridge risk and cross-chain due diligence. Ed25519-signed. 0.002 USDC on Base.",
"serviceName": "SYNTHORA"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"bridge": "stargate",
"to_chain": "base",
"amount_usd": 5000,
"from_chain": "ethereum"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"ok": true,
"niche": "bridge_risk",
"result": {
"bridge": "stargate",
"signal": "safe",
"risk_score": 0,
"audit_status": "audited",
"risk_factors": [],
"bridge_tvl_usd": 0,
"incident_history": []
}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object",
"required": [
"bridge"
],
"properties": {
"bridge": {
"type": "string",
"description": "Bridge name e.g. stargate, across, hop, wormhole"
},
"to_chain": {
"type": "string"
},
"amount_usd": {
"type": "number"
},
"from_chain": {
"type": "string"
}
}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"ok": {
"type": "boolean"
},
"type": "object",
"niche": {
"type": "string"
}
}
}
}
}
}
},
"delivery": {
"note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
"order": "compute -> failure gate -> verify -> settle -> deliver",
"scope": "this covers service FAILURE, not verdict quality",
"policy": "no-charge-on-service-failure",
"verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
"behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
},
"signature": {
"alg": "ed25519",
"canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
"verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
"jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
"envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
"sigEncoding": "hex(64B raw)",
"publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
}
},
"x402Version": 2
},
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x10800a5a5B9d72251566EC651E862A8b4B427dE0",
"amount": "50000",
"scheme": "exact",
"network": "eip155:8453",
"mimeType": "application/json",
"resource": "https://api.hergertsynthora.com/v1/businessrisk",
"description": "Counterparty business-risk verdict: one call fuses OFAC/EU sanctions screening, on-chain wallet reputation, and token/pool contract risk into a single weighted risk_score (0-100), a kill/pivot/proceed verdict, and reason_codes naming which sub-signal drove it. Weights: sanctions 0.50, wallet 0.30, token 0.20, renormalised if a leg is unavailable; a sanctions hit is a hard KILL floor. Degrades gracefully — a failed sub-check is dropped, never crashes the verdict. Deterministic, no LLM, Ed25519-signed. 0.05 USDC via x402 on Base. SYNTHORA.",
"maxAmountRequired": "50000",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://api.hergertsynthora.com/v1/businessrisk",
"iconUrl": "https://api.hergertsynthora.com/icon.svg",
"mimeType": "application/json",
"description": "Counterparty business-risk verdict: one call fuses OFAC/EU sanctions screening, on-chain wallet reputation, and token/pool contract risk into a single weighted risk_score (0-100), a kill/pivot/proceed verdict, and reason_codes naming which sub-signal drove it. Weights: sanctions 0.50, wallet 0.30, token 0.20, renormalised if a leg is unavailable; a sanctions hit is a hard KILL floor. Degrades gracefully — a failed sub-check is dropped, never crashes the verdict. Deterministic, no LLM, Ed25519-signed. 0.05 USDC via x402 on Base. SYNTHORA.",
"serviceName": "SYNTHORA"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"token": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"address": "0x28C6c06298d514Db089934071355E5743bf21d60"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"ok": true,
"niche": "business_risk",
"result": {
"checks": {
"wallet_rep": "ok",
"defi_verdict": "ok",
"aml_screening": "ok"
},
"summary": "PIVOT: elevated risk (62.5/100)...",
"verdict": "pivot",
"risk_tier": "elevated",
"disclaimer": "Deterministic composite risk verdict... Ed25519-signed.",
"risk_score": 62.5,
"sub_results": {
"wallet_rep": {},
"defi_verdict": {},
"aml_screening": {}
},
"reason_codes": [
"WALLET_SUSPICIOUS: reputation=45/100 (0 transacciones)",
"TOKEN_CAUTION: contract risk_level=medium, verdict=monitor"
],
"signals_used": 3,
"token_address": "0x8335...2913",
"weights_applied": {
"wallet_rep": 0.3,
"defi_verdict": 0.2,
"aml_screening": 0.5
},
"counterparty_address": "0x28C6...1d60"
}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object",
"anyOf": [
{
"required": [
"address"
]
},
{
"required": [
"token"
]
}
],
"properties": {
"token": {
"type": "string",
"description": "Token or pool contract (0x-40hex) — screened for contract risk"
},
"address": {
"type": "string",
"description": "Counterparty EVM wallet (0x-40hex) — screened for sanctions + reputation"
},
"apy_pct": {
"type": "number",
"description": "Optional APY passthrough to the DeFi risk leg"
},
"tvl_usd": {
"type": "number",
"description": "Optional TVL passthrough to the DeFi risk leg"
},
"protocol": {
"type": "string",
"description": "Optional protocol name for the token/pool"
},
"duration_days": {
"type": "integer",
"description": "Optional holding period passthrough"
}
}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"ok": {
"type": "boolean"
},
"type": "object",
"niche": {
"type": "string"
}
}
}
}
}
}
},
"delivery": {
"note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
"order": "compute -> failure gate -> verify -> settle -> deliver",
"scope": "this covers service FAILURE, not verdict quality",
"policy": "no-charge-on-service-failure",
"verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
"behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
},
"signature": {
"alg": "ed25519",
"canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
"verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
"jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
"envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
"sigEncoding": "hex(64B raw)",
"publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
}
},
"x402Version": 2
},
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x10800a5a5B9d72251566EC651E862A8b4B427dE0",
"amount": "320000",
"scheme": "exact",
"network": "eip155:8453",
"mimeType": "application/json",
"resource": "https://api.hergertsynthora.com/v1/codeaudit",
"description": "Multi-LLM Smart Contract Audit: 3 independent LLM perspectives (security, logic, gas) + static pattern scan on Solidity/Vyper source. Severity: clean/low/medium/high/critical. Ed25519-signed, publishable on-chain. POST {\"source\":\"pragma solidity...\",\"language\":\"solidity\"} or {\"address\":\"0x..\",\"chain\":\"base\"} for Sourcify-verified contracts.",
"maxAmountRequired": "320000",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://api.hergertsynthora.com/v1/codeaudit",
"iconUrl": "https://api.hergertsynthora.com/icon.svg",
"mimeType": "application/json",
"description": "Multi-LLM Smart Contract Audit: 3 independent LLM perspectives (security, logic, gas) + static pattern scan on Solidity/Vyper source. Severity: clean/low/medium/high/critical. Ed25519-signed, publishable on-chain. POST {\"source\":\"pragma solidity...\",\"language\":\"solidity\"} or {\"address\":\"0x..\",\"chain\":\"base\"} for Sourcify-verified contracts.",
"serviceName": "SYNTHORA"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"source": "pragma solidity ^0.8.0; contract Vault { address public owner; mapping(address=>uint) public bal; constructor(){owner=msg.sender;} function deposit() external payable { bal[msg.sender]+=msg.value; } function withdraw(uint a) external { require(bal[msg.sender]>=a); (bool ok,)=msg.sender.call{value:a}(\"\"); require(ok); bal[msg.sender]-=a; } }",
"language": "solidity"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"ok": true,
"niche": "code_audit",
"result": {},
"receipt": {}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object",
"required": [
"source"
],
"properties": {
"chain": {
"type": "string"
},
"source": {
"type": "string",
"description": "Solidity/Vyper source to audit"
},
"address": {
"type": "string",
"description": "OR a Sourcify-verified contract address"
},
"language": {
"type": "string"
}
}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"ok": {
"type": "boolean"
},
"type": "object",
"niche": {
"type": "string"
}
}
}
}
}
}
},
"delivery": {
"note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
"order": "compute -> failure gate -> verify -> settle -> deliver",
"scope": "this covers service FAILURE, not verdict quality",
"policy": "no-charge-on-service-failure",
"verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
"behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
},
"signature": {
"alg": "ed25519",
"canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
"verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
"jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
"envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
"sigEncoding": "hex(64B raw)",
"publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
}
},
"x402Version": 2
},
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x10800a5a5B9d72251566EC651E862A8b4B427dE0",
"amount": "50000",
"scheme": "exact",
"network": "eip155:8453",
"mimeType": "application/json",
"resource": "https://api.hergertsynthora.com/v1/coingecko-crypto-price-history",
"description": "Historical daily price, market-cap and volume time-series for a coin in any fiat currency from CoinGecko's keyless market_chart endpoint (JSON). Serves autonomous crypto-vs-fiat trend agents, backtesting bots, and agent-to-agent analytics needing multi-day price series without a key. Pay-per-call via x402 on Base. No charge on upstream failure.",
"maxAmountRequired": "50000",
"maxTimeoutSeconds": 300
}
],
"freeTier": {
"note": "send header X-WALLET: 0x<your Base address> for a free trial",
"header": "X-WALLET",
"callsPerWallet": 5
},
"resource": {
"url": "https://api.hergertsynthora.com/v1/coingecko-crypto-price-history",
"iconUrl": "https://api.hergertsynthora.com/icon.svg",
"mimeType": "application/json",
"description": "Historical daily price, market-cap and volume time-series for a coin in any fiat currency from CoinGecko's keyless market_chart endpoint (JSON). Serves autonomous crypto-vs-fiat trend agents, backtesting bots, and agent-to-agent analytics needing multi-day price series without a key. Pay-per-call via x402 on Base. No charge on upstream failure.",
"serviceName": "SYNTHORA"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"id": "bitcoin",
"days": 7,
"interval": "daily",
"vs_currency": "usd"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"ok": true,
"niche": "coingecko_crypto_price_history",
"result": {},
"receipt": {}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object",
"properties": {
"input": {
"type": "string",
"description": "Historical daily price, market-cap and volume time-series for a coin in any fiat currency from CoinGecko's keyless market_chart endpoint (JSON). Serves autonomous crypto-vs-fiat trend agents, backtesting bots, and agent-to-agent analytics needing multi-day price series without a key. Pay-per-call via x402 on Base. No charge on upstream failure."
}
}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"ok": {
"type": "boolean"
},
"type": "object",
"niche": {
"type": "string"
}
}
}
}
}
}
},
"delivery": {
"note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
"order": "compute -> failure gate -> verify -> settle -> deliver",
"scope": "this covers service FAILURE, not verdict quality",
"policy": "no-charge-on-service-failure",
"verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
"behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
},
"signature": {
"alg": "ed25519",
"canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
"verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
"jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
"envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
"sigEncoding": "hex(64B raw)",
"publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
}
},
"x402Version": 2
},
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x10800a5a5B9d72251566EC651E862A8b4B427dE0",
"amount": "50000",
"scheme": "exact",
"network": "eip155:8453",
"mimeType": "application/json",
"resource": "https://api.hergertsynthora.com/v1/commodity-macro",
"description": "Gold, silver and major macro FX reference in one call for portfolio-hedging agents. ECB + metals reference. Free source. $0.05 USDC via x402 on Base. SYNTHORA. Pay-per-call via x402 on Base. No charge on upstream failure.",
"maxAmountRequired": "50000",
"maxTimeoutSeconds": 300
}
],
"freeTier": {
"note": "send header X-WALLET: 0x<your Base address> for a free trial",
"header": "X-WALLET",
"callsPerWallet": 5
},
"resource": {
"url": "https://api.hergertsynthora.com/v1/commodity-macro",
"iconUrl": "https://api.hergertsynthora.com/icon.svg",
"mimeType": "application/json",
"description": "Gold, silver and major macro FX reference in one call for portfolio-hedging agents. ECB + metals reference. Free source. $0.05 USDC via x402 on Base. SYNTHORA. Pay-per-call via x402 on Base. No charge on upstream failure.",
"serviceName": "SYNTHORA"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"base": "USD",
"symbols": "EUR,GBP,JPY,CHF"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"ok": true,
"niche": "commodity_macro",
"result": {},
"receipt": {}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object",
"properties": {
"input": {
"type": "string",
"description": "Gold, silver and major macro FX reference in one call for portfolio-hedging agents. ECB + metals reference. Free source. $0.05 USDC via x402 on Base. SYNTHORA. Pay-per-call via x402 on Base. No charge on upstream failure."
}
}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"ok": {
"type": "boolean"
},
"type": "object",
"niche": {
"type": "string"
}
}
}
}
}
}
},
"delivery": {
"note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
"order": "compute -> failure gate -> verify -> settle -> deliver",
"scope": "this covers service FAILURE, not verdict quality",
"policy": "no-charge-on-service-failure",
"verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
"behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
},
"signature": {
"alg": "ed25519",
"canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
"verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
"jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
"envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
"sigEncoding": "hex(64B raw)",
"publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
}
},
"x402Version": 2
},
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x10800a5a5B9d72251566EC651E862A8b4B427dE0",
"amount": "320000",
"scheme": "exact",
"network": "eip155:8453",
"mimeType": "application/json",
"resource": "https://api.hergertsynthora.com/v1/contractwatch",
"description": "SYNTHORA contractwatch: on-chain contract safety verdict: honeypot, rug-pull, hidden mint and owner privileges, correlated across independent sources and signed.",
"maxAmountRequired": "320000",
"maxTimeoutSeconds": 300
}
],
"freeTier": {
"note": "send header X-WALLET: 0x<your Base address> for a free trial",
"header": "X-WALLET",
"callsPerWallet": 3
},
"resource": {
"url": "https://api.hergertsynthora.com/v1/contractwatch",
"tags": [
"onchain",
"security",
"smart-contracts",
"blockchain",
"x402",
"signed-verdict"
],
"iconUrl": "https://api.hergertsynthora.com/icon.svg",
"mimeType": "application/json",
"description": "SYNTHORA contractwatch: on-chain contract safety verdict: honeypot, rug-pull, hidden mint and owner privileges, correlated across independent sources and signed.",
"serviceName": "SYNTHORA"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"chain": "base",
"address": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"ok": true,
"niche": "contract_guard",
"result": {
"chain": "base",
"flags": [
"código NO verificado en Sourcify",
"PROXY actualizable (zeppelinos) — el admin/owner puede cambiar la lógica (impl 0x2Ce6311d…)",
"..."
],
"owner": "0x3ABd6f64A422225E61E435baE41db12096106df7",
"proxy": true,
"address": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"verdict": "medium",
"verified": false,
"rationale": "SIN verificar. Proxy actualizable (zeppelinos: riesgo de cambio de lógica). Tiene owner/control centralizado.",
"disclaimer": "No es consejo financiero. Análisis automatizado de seguridad on-chain con procedencia firmada.",
"proxy_standard": "zeppelinos"
},
"provenance": "<3 fuentes independientes>"
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object",
"properties": {
"input": {
"type": "string",
"description": "SYNTHORA contractwatch: on-chain contract safety verdict: honeypot, rug-pull, hidden mint and owner privileges, correlated across independent sources and signed."
}
}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"ok": {
"type": "boolean"
},
"type": "object",
"niche": {
"type": "string"
}
}
}
}
}
}
},
"delivery": {
"note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
"order": "compute -> failure gate -> verify -> settle -> deliver",
"scope": "this covers service FAILURE, not verdict quality",
"policy": "no-charge-on-service-failure",
"verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
"behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
},
"signature": {
"alg": "ed25519",
"canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
"verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
"jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
"envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
"sigEncoding": "hex(64B raw)",
"publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
}
},
"x402Version": 2
},
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x10800a5a5B9d72251566EC651E862A8b4B427dE0",
"amount": "100000",
"scheme": "exact",
"network": "eip155:8453",
"mimeType": "application/json",
"resource": "https://api.hergertsynthora.com/v1/cryptonews",
"description": "SYNTHORA cryptonews: real-time crypto news headlines with sentiment, ranked by importance. Aggregates keyless RSS feeds (CryptoPanic, CoinDesk, CoinTelegraph, Decrypt, Bitcoin Magazine) into deduplicated, freshness-and-source-weighted top headlines, each scored with a lexical bull/bear sentiment (very_bullish.very_bearish) plus an overall market sentiment. Filter by asset (BTC, ETH, SOL, XRP, and more) to get only headlines about that coin. Built for trading and quant agents that need a cheap, fast crypto news + sentiment pulse. Ed25519-signed.",
"maxAmountRequired": "100000",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://api.hergertsynthora.com/v1/cryptonews",
"tags": [
"sentiment",
"market-intel",
"crypto",
"x402",
"signed-verdict",
"usdc"
],
"iconUrl": "https://api.hergertsynthora.com/icon.svg",
"mimeType": "application/json",
"description": "SYNTHORA cryptonews: real-time crypto news headlines with sentiment, ranked by importance. Aggregates keyless RSS feeds (CryptoPanic, CoinDesk, CoinTelegraph, Decrypt, Bitcoin Magazine) into deduplicated, freshness-and-source-weighted top headlines, each scored with a lexical bull/bear sentiment (very_bullish.very_bearish) plus an overall market sentiment. Filter by asset (BTC, ETH, SOL, XRP, and more) to get only headlines about that coin. Built for trading and quant agents that need a cheap, fast crypto news + sentiment pulse. Ed25519-signed.",
"serviceName": "SYNTHORA"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"asset": "BTC",
"limit": 10
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"ok": true,
"niche": "cryptonews",
"result": {
"asset": "BTC",
"count": 2,
"sources": [
"CryptoPanic",
"CoinDesk",
"CoinTelegraph",
"Decrypt",
"BitcoinMagazine"
],
"headlines": [
{
"ts": "2026-07-08T09:12:00+00:00",
"url": "https://www.coindesk.com/example",
"score": 2.31,
"title": "Bitcoin surges past resistance as ETF inflows hit record",
"source": "CoinDesk",
"sentiment": "very_bullish"
},
{
"ts": "2026-07-08T08:40:00+00:00",
"url": "https://cointelegraph.com/example",
"score": 1.08,
"title": "Analysts warn of BTC pullback risk near key level",
"source": "CoinTelegraph",
"sentiment": "bearish"
}
],
"generated_at": "2026-07-08T09:15:00+00:00",
"sentiment_score": 0.42,
"overall_sentiment": "bullish"
}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object",
"required": [],
"properties": {
"asset": {
"type": "string",
"description": "Optional ticker to filter headlines, e.g. BTC, ETH, SOL"
},
"limit": {
"type": "integer",
"maximum": 50,
"minimum": 1,
"description": "Max headlines to return (default 10)"
}
}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"ok": {
"type": "boolean"
},
"type": "object",
"niche": {
"type": "string"
}
}
}
}
}
}
},
"delivery": {
"note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
"order": "compute -> failure gate -> verify -> settle -> deliver",
"scope": "this covers service FAILURE, not verdict quality",
"policy": "no-charge-on-service-failure",
"verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
"behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
},
"signature": {
"alg": "ed25519",
"canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
"verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
"jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
"envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
"sigEncoding": "hex(64B raw)",
"publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
}
},
"x402Version": 2
},
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x10800a5a5B9d72251566EC651E862A8b4B427dE0",
"amount": "50000",
"scheme": "exact",
"network": "eip155:8453",
"mimeType": "application/json",
"resource": "https://api.hergertsynthora.com/v1/defidata",
"description": "SYNTHORA defidata: deFi market-data feed: perp open interest, funding rate, mark price and a directional signal across top assets (BTC/ETH/SOL/…), plus optional per-asset verdict. Deterministic, Ed25519-signed. SYNTHORA. First 3 calls FREE per wallet — send header 'X-WALLET: 0x<your Base address>' (no payment).",
"maxAmountRequired": "50000",
"maxTimeoutSeconds": 300
}
],
"freeTier": {
"note": "send header X-WALLET: 0x<your Base address> for a free trial",
"header": "X-WALLET",
"callsPerWallet": 5
},
"resource": {
"url": "https://api.hergertsynthora.com/v1/defidata",
"tags": [
"crypto",
"markets",
"derivatives",
"price",
"defi",
"onchain"
],
"iconUrl": "https://api.hergertsynthora.com/icon.svg",
"mimeType": "application/json",
"description": "SYNTHORA defidata: deFi market-data feed: perp open interest, funding rate, mark price and a directional signal across top assets (BTC/ETH/SOL/…), plus optional per-asset verdict. Deterministic, Ed25519-signed. SYNTHORA. First 3 calls FREE per wallet — send header 'X-WALLET: 0x<your Base address>' (no payment).",
"serviceName": "SYNTHORA"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"slug": "defi-data",
"limit": 5
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"ok": true,
"niche": "defi_data",
"result": {
"feed": [
{
"asset": "BTC",
"signal": "neutral",
"mark_price": 97500,
"funding_rate": 0.000012,
"open_interest_usd": 2209942387.46
}
],
"slug": "defi-data",
"as_of": 1783322000,
"count": 3,
"signed": "ed25519"
}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object",
"properties": {
"slug": {
"type": "string",
"description": "Use defi-data for the top-assets feed"
},
"asset": {
"type": "string",
"description": "Ticker for single-asset detail, e.g. BTC"
},
"limit": {
"type": "integer",
"description": "Feed size (default all top assets)"
}
}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"ok": {
"type": "boolean"
},
"type": "object",
"niche": {
"type": "string"
}
}
}
}
}
}
},
"delivery": {
"note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
"order": "compute -> failure gate -> verify -> settle -> deliver",
"scope": "this covers service FAILURE, not verdict quality",
"policy": "no-charge-on-service-failure",
"verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
"behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
},
"signature": {
"alg": "ed25519",
"canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
"verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
"jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
"envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
"sigEncoding": "hex(64B raw)",
"publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
}
},
"x402Version": 2
},
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x10800a5a5B9d72251566EC651E862A8b4B427dE0",
"amount": "50000",
"scheme": "exact",
"network": "eip155:8453",
"mimeType": "application/json",
"resource": "https://api.hergertsynthora.com/v1/deliver",
"description": "Audit a domain's email deliverability and sender reputation. Checks SPF, DKIM selectors, DMARC policy strength (reject/quarantine/none), BIMI, MX and PTR records, returning a spam score and prioritized fixes. Use it to assess inbox placement, email authentication and domain reputation before sending. Deterministic DNS-only, Ed25519-signed. 0.001 USDC on Base. First 3 calls FREE per wallet — send header X-WALLET: 0x<your Base address> (no payment); then \\ per call.",
"maxAmountRequired": "50000",
"maxTimeoutSeconds": 300
}
],
"freeTier": {
"note": "send header X-WALLET: 0x<your Base address> for a free trial",
"header": "X-WALLET",
"callsPerWallet": 3
},
"resource": {
"url": "https://api.hergertsynthora.com/v1/deliver",
"iconUrl": "https://api.hergertsynthora.com/icon.svg",
"mimeType": "application/json",
"description": "Audit a domain's email deliverability and sender reputation. Checks SPF, DKIM selectors, DMARC policy strength (reject/quarantine/none), BIMI, MX and PTR records, returning a spam score and prioritized fixes. Use it to assess inbox placement, email authentication and domain reputation before sending. Deterministic DNS-only, Ed25519-signed. 0.001 USDC on Base. First 3 calls FREE per wallet — send header X-WALLET: 0x<your Base address> (no payment); then \\ per call.",
"serviceName": "SYNTHORA"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"domain": "example.com"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"ok": true,
"niche": "deliverability",
"result": {
"mx": [],
"spf": {},
"dkim": {},
"dmarc": {},
"score": 100,
"domain": "example.com",
"verdict": "good",
"recommendations": []
}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object",
"required": [
"domain"
],
"properties": {
"domain": {
"type": "string",
"description": "Domain or email address to audit"
}
}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"ok": {
"type": "boolean"
},
"type": "object",
"niche": {
"type": "string"
}
}
}
}
}
}
},
"delivery": {
"note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
"order": "compute -> failure gate -> verify -> settle -> deliver",
"scope": "this covers service FAILURE, not verdict quality",
"policy": "no-charge-on-service-failure",
"verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
"behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
},
"signature": {
"alg": "ed25519",
"canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
"verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
"jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
"envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
"sigEncoding": "hex(64B raw)",
"publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
}
},
"x402Version": 2
},
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x10800a5a5B9d72251566EC651E862A8b4B427dE0",
"amount": "320000",
"scheme": "exact",
"network": "eip155:8453",
"mimeType": "application/json",
"resource": "https://api.hergertsynthora.com/v1/derivbundle",
"description": "002 call (cheaper + fewer round-trips than buying each separately) 5 live datasets, partial degradation (never fails whole), Ed25519-signed First 3 calls FREE per wallet via X-WALLET header SYNTHORA.",
"maxAmountRequired": "320000",
"maxTimeoutSeconds": 300
}
],
"freeTier": {
"note": "send header X-WALLET: 0x<your Base address> for a free trial",
"header": "X-WALLET",
"callsPerWallet": 5
},
"resource": {
"url": "https://api.hergertsynthora.com/v1/derivbundle",
"tags": [
"crypto",
"markets",
"derivatives",
"price",
"defi",
"onchain"
],
"iconUrl": "https://api.hergertsynthora.com/icon.svg",
"mimeType": "application/json",
"description": "002 call (cheaper + fewer round-trips than buying each separately) 5 live datasets, partial degradation (never fails whole), Ed25519-signed First 3 calls FREE per wallet via X-WALLET header SYNTHORA.",
"serviceName": "SYNTHORA"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"asset": "BTC"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"ok": true,
"niche": "derivbundle",
"result": {
"asset": "BTC",
"partial": false,
"datasets": {},
"datasets_ok": 4,
"datasets_total": 4
}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object",
"required": [],
"properties": {
"asset": {
"type": "string",
"description": "asset symbol e.g. BTC/ETH"
}
}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"ok": {
"type": "boolean"
},
"type": "object",
"niche": {
"type": "string"
}
}
}
}
}
}
},
"delivery": {
"note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
"order": "compute -> failure gate -> verify -> settle -> deliver",
"scope": "this covers service FAILURE, not verdict quality",
"policy": "no-charge-on-service-failure",
"verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
"behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
},
"signature": {
"alg": "ed25519",
"canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
"verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
"jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
"envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
"sigEncoding": "hex(64B raw)",
"publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
}
},
"x402Version": 2
},
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x10800a5a5B9d72251566EC651E862A8b4B427dE0",
"amount": "50000",
"scheme": "exact",
"network": "eip155:8453",
"mimeType": "application/json",
"resource": "https://api.hergertsynthora.com/v1/dex-pair-price",
"description": "Real-time on-chain DEX price, liquidity and 24h volume for any pool/token on any chain via GeckoTerminal. For DeFi routing agents. Free source. $0.01 USDC via x402 on Base. SYNTHORA. First 3 calls FREE per wallet — send header X-WALLET: 0x<addr>. No charge on upstream failure.",
"maxAmountRequired": "50000",
"maxTimeoutSeconds": 300
}
],
"freeTier": {
"note": "send header X-WALLET: 0x<your Base address> for a free trial",
"header": "X-WALLET",
"callsPerWallet": 3
},
"resource": {
"url": "https://api.hergertsynthora.com/v1/dex-pair-price",
"iconUrl": "https://api.hergertsynthora.com/icon.svg",
"mimeType": "application/json",
"description": "Real-time on-chain DEX price, liquidity and 24h volume for any pool/token on any chain via GeckoTerminal. For DeFi routing agents. Free source. $0.01 USDC via x402 on Base. SYNTHORA. First 3 calls FREE per wallet — send header X-WALLET: 0x<addr>. No charge on upstream failure.",
"serviceName": "SYNTHORA"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"network": "base",
"token_address": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"ok": true,
"niche": "dex-pair-price",
"result": {
"network": "base",
"liquidity": null,
"price_usd": "1.0040515644",
"volume_24h": null,
"token_address": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
},
"provenance": {
"url": "https://api.geckoterminal.com/api/v2/networks/base/tokens",
"source": "SYNTHORA DEX Pair Price"
}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object",
"required": [
"network",
"token_address"
],
"properties": {
"network": {
"type": "string",
"description": "network"
},
"token_address": {
"type": "string",
"description": "token_address"
}
}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"ok": {
"type": "boolean"
},
"type": "object",
"niche": {
"type": "string"
}
}
}
}
}
}
},
"delivery": {
"note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
"order": "compute -> failure gate -> verify -> settle -> deliver",
"scope": "this covers service FAILURE, not verdict quality",
"policy": "no-charge-on-service-failure",
"verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
"behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
},
"signature": {
"alg": "ed25519",
"canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
"verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
"jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
"envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
"sigEncoding": "hex(64B raw)",
"publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
}
},
"x402Version": 2
},
{
"error": "payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x10800a5a5B9d72251566EC651E862A8b4B427dE0",
"scheme": "exact",
"network": "base",
"mimeType": "application/json",
"resource": "https://api.hergertsynthora.com/v1/fear-greed",
"description": "SYNTHORA fear-greed: indice de miedo/codicia con la VARIACION frente a ayer y el cruce de banda, no solo el valor. Fuente: alternative.me, fechada y con hash.",
"outputSchema": {
"input": {
"body": {
"input": "latest"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"ok": true,
"niche": "fear_greed",
"result": {
"senal": "el indice cambia de 'Extreme Fear' a 'Fear': giro de regimen de sentimiento",
"value": 27,
"fuente": "<omitido en el ejemplo publico>",
"serie_8d": [
27,
25,
"..."
],
"as_of_utc": "2026-08-05T16:31:27Z",
"maximo_8d": 29,
"minimo_8d": 25,
"latencia_s": 0.33,
"delta_vs_ayer": 2,
"classification": "Fear",
"cambio_de_banda": true,
"clasificacion_ayer": "Extreme Fear"
}
}
}
},
"maxAmountRequired": "50000",
"maxTimeoutSeconds": 60
}
],
"freeTier": {
"note": "send header X-WALLET: 0x<your Base address> for a free trial",
"header": "X-WALLET",
"callsPerWallet": 3
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"input": "latest"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"ok": true,
"niche": "fear_greed",
"result": {
"senal": "el indice cambia de 'Extreme Fear' a 'Fear': giro de regimen de sentimiento",
"value": 27,
"fuente": "<omitido en el ejemplo publico>",
"serie_8d": [
27,
25,
"..."
],
"as_of_utc": "2026-08-05T16:31:27Z",
"maximo_8d": 29,
"minimo_8d": 25,
"latencia_s": 0.33,
"delta_vs_ayer": 2,
"classification": "Fear",
"cambio_de_banda": true,
"clasificacion_ayer": "Extreme Fear"
}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object",
"required": [
"input"
],
"properties": {
"input": {
"type": "string",
"description": "SYNTHORA fear-greed: indice de miedo/codicia con la VARIACION frente a ayer y el cruce de banda, no solo el valor. Fuente: alternative.me, fechada y con hash."
}
}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"ok": {
"type": "boolean"
},
"type": "object",
"niche": {
"type": "string"
}
}
}
}
}
}
},
"delivery": {
"note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
"order": "compute -> failure gate -> verify -> settle -> deliver",
"scope": "this covers service FAILURE, not verdict quality",
"policy": "no-charge-on-service-failure",
"verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
"behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
},
"signature": {
"alg": "ed25519",
"canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
"verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
"jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
"envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
"sigEncoding": "hex(64B raw)",
"publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
}
},
"x402Version": 1
},
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x10800a5a5B9d72251566EC651E862A8b4B427dE0",
"amount": "50000",
"scheme": "exact",
"network": "eip155:8453",
"mimeType": "application/json",
"resource": "https://api.hergertsynthora.com/v1/forex-convert",
"description": "Convert any amount between 30+ currencies at real ECB rates. For payment and treasury agents pricing cross-currency. Free source. $0.05 USDC via x402 on Base. SYNTHORA. Pay-per-call via x402 on Base. No charge on upstream failure.",
"maxAmountRequired": "50000",
"maxTimeoutSeconds": 300
}
],
"freeTier": {
"note": "send header X-WALLET: 0x<your Base address> for a free trial",
"header": "X-WALLET",
"callsPerWallet": 5
},
"resource": {
"url": "https://api.hergertsynthora.com/v1/forex-convert",
"iconUrl": "https://api.hergertsynthora.com/icon.svg",
"mimeType": "application/json",
"description": "Convert any amount between 30+ currencies at real ECB rates. For payment and treasury agents pricing cross-currency. Free source. $0.05 USDC via x402 on Base. SYNTHORA. Pay-per-call via x402 on Base. No charge on upstream failure.",
"serviceName": "SYNTHORA"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"to": "EUR",
"from": "USD",
"amount": 100
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"ok": true,
"niche": "forex_convert",
"result": {},
"receipt": {}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object",
"properties": {
"input": {
"type": "string",
"description": "Convert any amount between 30+ currencies at real ECB rates. For payment and treasury agents pricing cross-currency. Free source. $0.05 USDC via x402 on Base. SYNTHORA. Pay-per-call via x402 on Base. No charge on upstream failure."
}
}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"ok": {
"type": "boolean"
},
"type": "object",
"niche": {
"type": "string"
}
}
}
}
}
}
},
"delivery": {
"note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
"order": "compute -> failure gate -> verify -> settle -> deliver",
"scope": "this covers service FAILURE, not verdict quality",
"policy": "no-charge-on-service-failure",
"verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
"behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
},
"signature": {
"alg": "ed25519",
"canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
"verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
"jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
"envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
"sigEncoding": "hex(64B raw)",
"publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
}
},
"x402Version": 2
},
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x10800a5a5B9d72251566EC651E862A8b4B427dE0",
"amount": "50000",
"scheme": "exact",
"network": "eip155:8453",
"mimeType": "application/json",
"resource": "https://api.hergertsynthora.com/v1/forex-latest",
"description": "SYNTHORA forex-latest: fX reference rate contrasted between the ECB official fixing (set once daily) and the live market rate, reporting the separation between them: how far the market has moved since the fixing, which is the only actionable part of an exchange rate.",
"maxAmountRequired": "50000",
"maxTimeoutSeconds": 300
}
],
"freeTier": {
"note": "send header X-WALLET: 0x<your Base address> for a free trial",
"header": "X-WALLET",
"callsPerWallet": 5
},
"resource": {
"url": "https://api.hergertsynthora.com/v1/forex-latest",
"tags": [
"forex",
"macro",
"markets",
"reference-rates",
"x402",
"signed-verdict"
],
"iconUrl": "https://api.hergertsynthora.com/icon.svg",
"mimeType": "application/json",
"description": "SYNTHORA forex-latest: fX reference rate contrasted between the ECB official fixing (set once daily) and the live market rate, reporting the separation between them: how far the market has moved since the fixing, which is the only actionable part of an exchange rate.",
"serviceName": "SYNTHORA"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"base": "EUR",
"quote": "USD"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"ok": true,
"niche": "forex_latest",
"result": {
"base": "EUR",
"senal": "la mayor separacion entre la referencia oficial del BCE y el mercado esta en BRL: -0.6987% (BCE 5.910200 vs mercado 5.868903). Mide cuanto se ha movido el mercado desde la fijacion diaria del BCE.",
"fuentes": "<2 fuentes independientes>",
"mercado": {
"n_monedas": 166,
"actualizado": "Wed, 05 Aug 2026 00:02:31 +0000"
},
"as_of_utc": "2026-08-05T16:31:27Z",
"confianza": "alta",
"rates_bce": {
"AUD": 1.6385,
"BRL": 5.9102,
"CAD": 1.623,
"CHF": 0.9345,
"CNY": 7.7989,
"CZK": 24.195,
"DKK": 7.4753,
"GBP": 0.8572,
"HKD": 9.0619,
"HUF": 362.08,
"IDR": 20648.04,
"ILS": 3.4672,
"INR": 109.9045,
"ISK": 141.8,
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"KRW": 1644.97,
"MXN": 19.8867,
"MYR": 4.7291,
"NOK": 10.9835,
"NZD": 1.968,
"PHP": 70.192,
"PLN": 4.306,
"RON": 5.2469,
"SEK": 10.9635,
"SGD": 1.4806,
"THB": 38.29,
"TRY": 54.9691,
"USD": 1.1554,
"ZAR": 18.8869
},
"latencia_s": 0.12,
"degradacion": {
"de": 2,
"fallos": [],
"fuentes_vivas": 2
},
"rates_mercado": {
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"AFN": 75.549134,
"ALL": 93.329397,
"AMD": 421.915192,
"ANG": 2.062709,
"AOA": 1088.376462,
"ARS": 1724.437368,
"AUD": 1.63793,
"AWG": 2.062709,
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"BOB": 14.011682,
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"BZD": 2.304703,
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"CDF": 2638.365672,
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"CLF": 0.026942,
"CLP": 1064.904486,
"CNH": 7.778561,
"CNY": 7.787379,
"COP": 3723.186039,
"CRC": 522.373003,
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"CVE": 110.265,
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"DZD": 153.084495,
"EGP": 57.82955,
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"ETB": 186.172417,
"EUR": 1,
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"FKP": 0.857055,
"FOK": 7.463751,
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"GEL": 3.017354,
"GGP": 0.857055,
"GHS": 13.494188,
"GIP": 0.857055,
"GMD": 85.756404,
"GNF": 10114.02705,
"GTQ": 8.781522,
"GYD": 240.99591,
"HKD": 9.037731,
"HNL": 30.862768,
"HRK": 7.5345,
"HTG": 150.507024,
"HUF": 361.765494,
"IDR": 20751.962929,
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"IMP": 0.857055,
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"IQD": 1510.858974,
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"ISK": 142.002117,
"JEP": 0.857055,
"JMD": 182.73931,
"JOD": 0.817017,
"JPY": 181.648823,
"KES": 149.057515,
"KGS": 100.856371,
"KHR": 4651.855263,
"KID": 1.637878,
"KMF": 491.96775,
"KRW": 1645.18697,
"KWD": 0.355541,
"KYD": 0.960292,
"KZT": 543.30604,
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"LBP": 103135.454996,
"LKR": 386.518526,
"LRD": 207.805326,
"LSL": 18.900272,
"LYD": 7.337616,
"MAD": 10.735388,
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"MKD": 61.497,
"MMK": 2418.335865,
"MNT": 4126.80795,
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"MUR": 54.090047,
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"MWK": 2009.05446,
"MXN": 19.902212,
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"MZN": 73.471199,
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"NGN": 1567.942073,
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"NOK": 10.998781,
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"NZD": 1.959722,
"OMR": 0.443076,
"PAB": 1.152351,
"PEN": 3.900601,
"PGK": 5.081915,
"PHP": 70.313166,
"PKR": 320.460523,
"PLN": 4.301167,
"PYG": 6895.114172,
"QAR": 4.194559,
"RON": 5.24938,
"RSD": 117.361262,
"RUB": 93.47557,
"RWF": 1693.884829,
"SAR": 4.321318,
"SBD": 9.157412,
"SCR": 16.347125,
"SDG": 514.615721,
"SEK": 10.980164,
"SGD": 1.477643,
"SHP": 0.857055,
"SLE": 27.852708,
"SLL": 27848.111044,
"SOS": 658.363128,
"SRD": 43.673996,
"SSP": 5821.174477,
"STN": 24.5,
"SYP": 140.078626,
"SZL": 18.900272,
"THB": 38.364732,
"TJS": 10.620056,
"TMT": 4.029916,
"TND": 3.382699,
"TOP": 2.742957,
"TRY": 54.831365,
"TTD": 8.032479,
"TVD": 1.637878,
"TWD": 37.329146,
"TZS": 3022.872978,
"UAH": 51.549832,
"UGX": 4252.227177,
"USD": 1.152535,
"UYU": 46.360011,
"UZS": 13714.153628,
"VES": 870.044512,
"VND": 30074.802625,
"VUV": 137.09803,
"WST": 3.107984,
"XAF": 655.957,
"XCD": 3.111349,
"XCG": 2.062709,
"XDR": 0.843604,
"XOF": 655.957,
"XPF": 119.332,
"YER": 274.255895,
"ZAR": 18.900503,
"ZMW": 21.850443,
"ZWG": 30.6678,
"ZWL": 30.6678
},
"mayor_separacion": {
"bce": 5.9102,
"pct": -0.6987,
"moneda": "BRL",
"mercado": 5.868903
},
"separaciones_top5": [
{
"pct": -0.6987,
"moneda": "BRL"
},
{
"pct": 0.5033,
"moneda": "IDR"
},
"..."
],
"monedas_contrastadas": 29,
"referencia_oficial_bce": {
"fecha": "2026-08-05",
"n_monedas": 29
}
}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object",
"properties": {
"input": {
"type": "string",
"description": "SYNTHORA forex-latest: fX reference rate contrasted between the ECB official fixing (set once daily) and the live market rate, reporting the separation between them: how far the market has moved since the fixing, which is the only actionable part of an exchange rate."
}
}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"ok": {
"type": "boolean"
},
"type": "object",
"niche": {
"type": "string"
}
}
}
}
}
}
},
"delivery": {
"note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
"order": "compute -> failure gate -> verify -> settle -> deliver",
"scope": "this covers service FAILURE, not verdict quality",
"policy": "no-charge-on-service-failure",
"verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
"behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
},
"signature": {
"alg": "ed25519",
"canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
"verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
"jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
"envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
"sigEncoding": "hex(64B raw)",
"publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
}
},
"x402Version": 2
},
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x10800a5a5B9d72251566EC651E862A8b4B427dE0",
"amount": "50000",
"scheme": "exact",
"network": "eip155:8453",
"mimeType": "application/json",
"resource": "https://api.hergertsynthora.com/v1/funding-rates",
"description": "Real-time perpetual funding rates + mark price for any Binance futures symbol. Essential for delta-neutral and basis-trading agents. Free source, deterministic, instant JSON. $0.01 USDC via x402 on Base. SYNTHORA. First 3 calls FREE per wallet — send header X-WALLET: 0x<addr>. No charge on upstream failure.",
"maxAmountRequired": "50000",
"maxTimeoutSeconds": 300
}
],
"freeTier": {
"note": "send header X-WALLET: 0x<your Base address> for a free trial",
"header": "X-WALLET",
"callsPerWallet": 3
},
"resource": {
"url": "https://api.hergertsynthora.com/v1/funding-rates",
"iconUrl": "https://api.hergertsynthora.com/icon.svg",
"mimeType": "application/json",
"description": "Real-time perpetual funding rates + mark price for any Binance futures symbol. Essential for delta-neutral and basis-trading agents. Free source, deterministic, instant JSON. $0.01 USDC via x402 on Base. SYNTHORA. First 3 calls FREE per wallet — send header X-WALLET: 0x<addr>. No charge on upstream failure.",
"serviceName": "SYNTHORA"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"symbol": "BTCUSDT"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"ok": true,
"niche": "funding-rates",
"result": {
"symbol": "BTCUSDT",
"mark_price": "64266.30000000",
"last_funding_rate": "0.00009163",
"next_funding_time": 1783699200000
},
"provenance": {
"url": "https://fapi.binance.com/fapi/v1/premiumIndex",
"source": "SYNTHORA Perp Funding Rates"
}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object",
"required": [
"symbol"
],
"properties": {
"symbol": {
"type": "string",
"description": "symbol"
}
}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"ok": {
"type": "boolean"
},
"type": "object",
"niche": {
"type": "string"
}
}
}
}
}
}
},
"delivery": {
"note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
"order": "compute -> failure gate -> verify -> settle -> deliver",
"scope": "this covers service FAILURE, not verdict quality",
"policy": "no-charge-on-service-failure",
"verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
"behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
},
"signature": {
"alg": "ed25519",
"canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
"verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
"jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
"envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
"sigEncoding": "hex(64B raw)",
"publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
}
},
"x402Version": 2
},
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x10800a5a5B9d72251566EC651E862A8b4B427dE0",
"amount": "320000",
"scheme": "exact",
"network": "eip155:8453",
"mimeType": "application/json",
"resource": "https://api.hergertsynthora.com/v1/identity-risk",
"description": "SYNTHORA identity-risk: brand-impersonation verdict (AUTHENTIC / DOUBTFUL / ACTIVE_IMPERSONATION) over decentralised social identities, correlated across independent sources.",
"maxAmountRequired": "320000",
"maxTimeoutSeconds": 300
}
],
"freeTier": {
"note": "send header X-WALLET: 0x<your Base address> for a free trial",
"header": "X-WALLET",
"callsPerWallet": 5
},
"resource": {
"url": "https://api.hergertsynthora.com/v1/identity-risk",
"iconUrl": "https://api.hergertsynthora.com/icon.svg",
"mimeType": "application/json",
"description": "SYNTHORA identity-risk: brand-impersonation verdict (AUTHENTIC / DOUBTFUL / ACTIVE_IMPERSONATION) over decentralised social identities, correlated across independent sources.",
"serviceName": "SYNTHORA"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"input": "vitalik.eth"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"ok": true,
"niche": "identity_risk",
"result": {},
"receipt": {}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object",
"required": [
"input"
],
"properties": {
"input": {
"type": "string",
"description": "SYNTHORA identity-risk: brand-impersonation verdict (AUTHENTIC / DOUBTFUL / ACTIVE_IMPERSONATION) over decentralised social identities, correlated across independent sources."
}
}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"ok": {
"type": "boolean"
},
"type": "object",
"niche": {
"type": "string"
}
}
}
}
}
}
},
"delivery": {
"note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
"order": "compute -> failure gate -> verify -> settle -> deliver",
"scope": "this covers service FAILURE, not verdict quality",
"policy": "no-charge-on-service-failure",
"verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
"behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
},
"signature": {
"alg": "ed25519",
"canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
"verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
"jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
"envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
"sigEncoding": "hex(64B raw)",
"publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
}
},
"x402Version": 2
},
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x10800a5a5B9d72251566EC651E862A8b4B427dE0",
"amount": "100000",
"scheme": "exact",
"network": "eip155:8453",
"mimeType": "application/json",
"resource": "https://api.hergertsynthora.com/v1/lifi-bridge-route-quote",
"description": "Returns the best cross-chain bridge/swap route for a given source chain, destination chain, tokens and amount from LI.FI, including chosen bridge tool, estimated output, fees and gas. Powers autonomous cross-chain agents and agent-to-agent treasury movers that pick the cheapest, fastest bridge path for a transfer. Pay-per-call via x402 on Base. No charge on upstream failure.",
"maxAmountRequired": "100000",
"maxTimeoutSeconds": 300
}
],
"freeTier": {
"note": "send header X-WALLET: 0x<your Base address> for a free trial",
"header": "X-WALLET",
"callsPerWallet": 5
},
"resource": {
"url": "https://api.hergertsynthora.com/v1/lifi-bridge-route-quote",
"iconUrl": "https://api.hergertsynthora.com/icon.svg",
"mimeType": "application/json",
"description": "Returns the best cross-chain bridge/swap route for a given source chain, destination chain, tokens and amount from LI.FI, including chosen bridge tool, estimated output, fees and gas. Powers autonomous cross-chain agents and agent-to-agent treasury movers that pick the cheapest, fastest bridge path for a transfer. Pay-per-call via x402 on Base. No charge on upstream failure.",
"serviceName": "SYNTHORA"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"toChain": "1",
"toToken": "0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48",
"fromChain": "8453",
"fromToken": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"fromAmount": "1000000",
"fromAddress": "0x15d30032981a77164ee9546542Ae4becDAc81cc8"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"ok": true,
"niche": "lifi_bridge_route_quote",
"result": {},
"receipt": {}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object",
"properties": {
"input": {
"type": "string",
"description": "Returns the best cross-chain bridge/swap route for a given source chain, destination chain, tokens and amount from LI.FI, including chosen bridge tool, estimated output, fees and gas. Powers autonomous cross-chain agents and agent-to-agent treasury movers that pick the cheapest, fastest bridge path for a transfer. Pay-per-call via x402 on Base. No charge on upstream failure."
}
}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"ok": {
"type": "boolean"
},
"type": "object",
"niche": {
"type": "string"
}
}
}
}
}
}
},
"delivery": {
"note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
"order": "compute -> failure gate -> verify -> settle -> deliver",
"scope": "this covers service FAILURE, not verdict quality",
"policy": "no-charge-on-service-failure",
"verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
"behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
},
"signature": {
"alg": "ed25519",
"canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
"verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
"jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
"envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
"sigEncoding": "hex(64B raw)",
"publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
}
},
"x402Version": 2
},
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x10800a5a5B9d72251566EC651E862A8b4B427dE0",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453",
"mimeType": "application/json",
"resource": "https://api.hergertsynthora.com/v1/llm-fast",
"description": "SYNTHORA LLM Gateway FAST: OpenAI-compatible /v1/chat/completions pay-per-call, no API keys. Fast free-tier models (llama-3.1-8b class) with automatic upstream failover, Ed25519-signed. 0.005 USDC via x402 on Base. POST {\"messages\":[{\"role\":\"user\",\"content\":\"...\"}]} (or {\"prompt\":\"...\"}).",
"maxAmountRequired": "5000",
"maxTimeoutSeconds": 300
}
],
"freeTier": {
"note": "send header X-WALLET: 0x<your Base address> for a free trial",
"header": "X-WALLET",
"callsPerWallet": 3
},
"resource": {
"url": "https://api.hergertsynthora.com/v1/llm-fast",
"tags": [
"llm",
"inference",
"openai-compatible",
"chat-completions",
"x402",
"usdc"
],
"iconUrl": "https://api.hergertsynthora.com/icon.svg",
"mimeType": "application/json",
"description": "SYNTHORA LLM Gateway FAST: OpenAI-compatible /v1/chat/completions pay-per-call, no API keys. Fast free-tier models (llama-3.1-8b class) with automatic upstream failover, Ed25519-signed. 0.005 USDC via x402 on Base. POST {\"messages\":[{\"role\":\"user\",\"content\":\"...\"}]} (or {\"prompt\":\"...\"}).",
"serviceName": "SYNTHORA"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"model": "llm-fast",
"messages": [
{
"role": "user",
"content": "Say hello in one word"
}
]
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"ok": true,
"niche": "llm_fast",
"result": {},
"receipt": {}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object",
"anyOf": [
{
"required": [
"messages"
]
},
{
"required": [
"prompt"
]
}
],
"properties": {
"model": {
"type": "string",
"description": "Etiqueta aceptada; el tier fija el modelo real"
},
"prompt": {
"type": "string",
"description": "Atajo sin messages"
},
"system": {
"type": "string",
"description": "System prompt opcional (con prompt)"
},
"messages": {
"type": "array",
"items": {
"type": "object"
},
"description": "OpenAI chat messages"
},
"max_tokens": {
"type": "integer",
"description": "Max output tokens (default 256, cap 1024)"
},
"temperature": {
"type": "number"
}
}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"ok": {
"type": "boolean"
},
"type": "object",
"niche": {
"type": "string"
}
}
}
}
}
}
},
"delivery": {
"note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
"order": "compute -> failure gate -> verify -> settle -> deliver",
"scope": "this covers service FAILURE, not verdict quality",
"policy": "no-charge-on-service-failure",
"verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
"behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
},
"signature": {
"alg": "ed25519",
"canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
"verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
"jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
"envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
"sigEncoding": "hex(64B raw)",
"publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
}
},
"x402Version": 2
},
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x10800a5a5B9d72251566EC651E862A8b4B427dE0",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453",
"mimeType": "application/json",
"resource": "https://api.hergertsynthora.com/v1/llm-smart",
"description": "SYNTHORA LLM Gateway SMART: OpenAI-compatible /v1/chat/completions pay-per-call, no API keys. Large free-tier models (llama-3.3-70b class) with automatic upstream failover, Ed25519-signed. 0.005 USDC via x402 on Base. POST {\"messages\":[{\"role\":\"user\",\"content\":\"...\"}]} (or {\"prompt\":\"...\"}).",
"maxAmountRequired": "5000",
"maxTimeoutSeconds": 300
}
],
"freeTier": {
"note": "send header X-WALLET: 0x<your Base address> for a free trial",
"header": "X-WALLET",
"callsPerWallet": 3
},
"resource": {
"url": "https://api.hergertsynthora.com/v1/llm-smart",
"tags": [
"llm",
"inference",
"openai-compatible",
"chat-completions",
"x402",
"usdc"
],
"iconUrl": "https://api.hergertsynthora.com/icon.svg",
"mimeType": "application/json",
"description": "SYNTHORA LLM Gateway SMART: OpenAI-compatible /v1/chat/completions pay-per-call, no API keys. Large free-tier models (llama-3.3-70b class) with automatic upstream failover, Ed25519-signed. 0.005 USDC via x402 on Base. POST {\"messages\":[{\"role\":\"user\",\"content\":\"...\"}]} (or {\"prompt\":\"...\"}).",
"serviceName": "SYNTHORA"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"model": "llm-smart",
"messages": [
{
"role": "user",
"content": "Say hello in one word"
}
]
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"ok": true,
"niche": "llm_smart",
"result": {},
"receipt": {}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object",
"anyOf": [
{
"required": [
"messages"
]
},
{
"required": [
"prompt"
]
}
],
"properties": {
"model": {
"type": "string",
"description": "Etiqueta aceptada; el tier fija el modelo real"
},
"prompt": {
"type": "string",
"description": "Atajo sin messages"
},
"system": {
"type": "string",
"description": "System prompt opcional (con prompt)"
},
"messages": {
"type": "array",
"items": {
"type": "object"
},
"description": "OpenAI chat messages"
},
"max_tokens": {
"type": "integer",
"description": "Max output tokens (default 256, cap 1024)"
},
"temperature": {
"type": "number"
}
}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"ok": {
"type": "boolean"
},
"type": "object",
"niche": {
"type": "string"
}
}
}
}
}
}
},
"delivery": {
"note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
"order": "compute -> failure gate -> verify -> settle -> deliver",
"scope": "this covers service FAILURE, not verdict quality",
"policy": "no-charge-on-service-failure",
"verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
"behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
},
"signature": {
"alg": "ed25519",
"canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
"verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
"jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
"envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
"sigEncoding": "hex(64B raw)",
"publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
}
},
"x402Version": 2
},
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x10800a5a5B9d72251566EC651E862A8b4B427dE0",
"amount": "50000",
"scheme": "exact",
"network": "eip155:8453",
"mimeType": "application/json",
"resource": "https://api.hergertsynthora.com/v1/mailcheck",
"description": "Verify whether an email address is real and safe to send to. Checks RFC syntax, live MX records, catch-all and disposable/temporary domains, role accounts (info@, admin@), free providers and common typos, returning a deliverability status and confidence score. Use it to validate and enrich contacts, clean email lists and prevent bounces. Deterministic, Ed25519-signed. 0.001 USDC on Base. First 3 calls FREE per wallet — send header 'X-WALLET: 0x<your Base address>' (no payment); then per call.",
"maxAmountRequired": "50000",
"maxTimeoutSeconds": 300
}
],
"freeTier": {
"note": "send header X-WALLET: 0x<your Base address> for a free trial",
"header": "X-WALLET",
"callsPerWallet": 3
},
"resource": {
"url": "https://api.hergertsynthora.com/v1/mailcheck",
"iconUrl": "https://api.hergertsynthora.com/icon.svg",
"mimeType": "application/json",
"description": "Verify whether an email address is real and safe to send to. Checks RFC syntax, live MX records, catch-all and disposable/temporary domains, role accounts (info@, admin@), free providers and common typos, returning a deliverability status and confidence score. Use it to validate and enrich contacts, clean email lists and prevent bounces. Deterministic, Ed25519-signed. 0.001 USDC on Base. First 3 calls FREE per wallet — send header 'X-WALLET: 0x<your Base address>' (no payment); then per call.",
"serviceName": "SYNTHORA"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"email": "[email protected]"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"ok": true,
"niche": "mailcheck",
"result": {
"email": "[email protected]",
"status": "deliverable",
"mx_found": true,
"confidence": 90,
"deliverable_hint": true
}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object",
"required": [
"email"
],
"properties": {
"email": {
"type": "string",
"description": "Email address to verify"
}
}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"ok": {
"type": "boolean"
},
"type": "object",
"niche": {
"type": "string"
}
}
}
}
}
}
},
"delivery": {
"note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
"order": "compute -> failure gate -> verify -> settle -> deliver",
"scope": "this covers service FAILURE, not verdict quality",
"policy": "no-charge-on-service-failure",
"verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
"behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
},
"signature": {
"alg": "ed25519",
"canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
"verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
"jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
"envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
"sigEncoding": "hex(64B raw)",
"publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
}
},
"x402Version": 2
},
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x10800a5a5B9d72251566EC651E862A8b4B427dE0",
"amount": "50000",
"scheme": "exact",
"network": "eip155:8453",
"mimeType": "application/json",
"resource": "https://api.hergertsynthora.com/v1/market-dominance",
"description": "SYNTHORA market-dominance: BTC and ETH market dominance contrasted between TWO independent providers (CoinGecko and Coinlore), reporting the discrepancy in percentage points and a confidence grade — you get not just the number but whether the number can be trusted. Deterministic, Ed25519-signed. $0.05 USDC on Base.",
"maxAmountRequired": "50000",
"maxTimeoutSeconds": 300
}
],
"freeTier": {
"note": "send header X-WALLET: 0x<your Base address> for a free trial",
"header": "X-WALLET",
"callsPerWallet": 3
},
"resource": {
"url": "https://api.hergertsynthora.com/v1/market-dominance",
"tags": [
"defi",
"onchain",
"analytics",
"markets",
"x402",
"signed-verdict"
],
"iconUrl": "https://api.hergertsynthora.com/icon.svg",
"mimeType": "application/json",
"description": "SYNTHORA market-dominance: BTC and ETH market dominance contrasted between TWO independent providers (CoinGecko and Coinlore), reporting the discrepancy in percentage points and a confidence grade — you get not just the number but whether the number can be trusted. Deterministic, Ed25519-signed. $0.05 USDC on Base.",
"serviceName": "SYNTHORA"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"input": "latest"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"ok": true,
"niche": "market_dominance",
"result": {
"senal": "DISCREPANCIA de 2.0474 pp entre los dos observadores sobre la dominancia de BTC: difieren en que universo de monedas cuentan; usa el dato con reserva",
"activo": "BTC",
"mercado": {
"cambio_mcap_24h_pct": 0.7526734248279898,
"vol_24h_usd__observador_1": 56761379043.38263,
"mcap_total_usd__observador_1": 2295392767065.4966,
"mcap_total_usd__observador_2": 2204884145726.574
},
"as_of_utc": "2026-08-05T18:32:32Z",
"confianza": "media",
"latencia_s": 0.34,
"degradacion": {
"de": 2,
"fallos": [],
"fuentes_vivas": 2
},
"observadores": {
"n": 2,
"clase": "proveedores independientes de datos de mercado",
"independencia": "distinto universo de monedas contadas"
},
"dominancia_pct": {
"observador_1": 56.5425644813439,
"observador_2": 58.59
},
"discrepancia_pp": 2.0474,
"dominancia_completa__observador_1": {
"bnb": 3.4844691054792953,
"btc": 56.5425644813439,
"eth": 10.09653383187638,
"sol": 1.8882736582960438,
"trx": 1.3550254187552544,
"xrp": 2.916078335417036,
"usdc": 3.131389199794474,
"usdt": 7.973493292224553,
"steth": 0.789703952729928,
"figr_heloc": 0.944722954428762
}
}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object",
"required": [
"input"
],
"properties": {
"input": {
"type": "string",
"description": "SYNTHORA market-dominance: BTC and ETH market dominance contrasted between TWO independent providers (CoinGecko and Coinlore), reporting the discrepancy in percentage points and a confidence grade — you get not just the number but whether the number can be trusted. Deterministic, Ed25519-signed. $0.05 USDC on Base."
}
}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"ok": {
"type": "boolean"
},
"type": "object",
"niche": {
"type": "string"
}
}
}
}
}
}
},
"delivery": {
"note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
"order": "compute -> failure gate -> verify -> settle -> deliver",
"scope": "this covers service FAILURE, not verdict quality",
"policy": "no-charge-on-service-failure",
"verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
"behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
},
"signature": {
"alg": "ed25519",
"canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
"verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
"jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
"envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
"sigEncoding": "hex(64B raw)",
"publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
}
},
"x402Version": 2
},
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x10800a5a5B9d72251566EC651E862A8b4B427dE0",
"amount": "50000",
"scheme": "exact",
"network": "eip155:8453",
"mimeType": "application/json",
"resource": "https://api.hergertsynthora.com/v1/mcpscan",
"description": "MCP Server Security Scan: probes an MCP server (JSON-RPC initialize + tools/list) and applies a deterministic rule engine over its tools — embedded secrets, dangerous shell/exec/filesystem capabilities, prompt-injection surface, hidden unicode, permissive input schemas, and auth/TLS/CORS headers — returning a security_score + findings[]. The trust layer for the agent economy. Zero-LLM, Ed25519-signed. 0.05 USDC via x402 on Base. SYNTHORA.",
"maxAmountRequired": "50000",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://api.hergertsynthora.com/v1/mcpscan",
"iconUrl": "https://api.hergertsynthora.com/icon.svg",
"mimeType": "application/json",
"description": "MCP Server Security Scan: probes an MCP server (JSON-RPC initialize + tools/list) and applies a deterministic rule engine over its tools — embedded secrets, dangerous shell/exec/filesystem capabilities, prompt-injection surface, hidden unicode, permissive input schemas, and auth/TLS/CORS headers — returning a security_score + findings[]. The trust layer for the agent economy. Zero-LLM, Ed25519-signed. 0.05 USDC via x402 on Base. SYNTHORA.",
"serviceName": "SYNTHORA"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"manifest": {
"name": "demo-mcp",
"tools": [
{
"name": "search",
"description": "web search"
},
{
"name": "fetch",
"description": "http fetch"
}
],
"version": "1.0.0"
}
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"ok": true,
"niche": "mcp_scan",
"result": {
"counts": {
"low": 0,
"high": 2,
"medium": 2,
"critical": 1
},
"signed": "ed25519",
"target": "https://mcp.example.dev/mcp",
"verdict": "critico",
"findings": [
{
"id": "MCP-S01",
"rule": "secret_in_manifest",
"tool": "read_file",
"detail": "openai_key embedded in tool",
"severity": "critical"
}
],
"tools_scanned": 2,
"security_score": 14
}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object",
"properties": {
"url": {
"type": "string",
"description": "MCP server URL (Streamable-HTTP endpoint)"
},
"manifest": {
"type": "object",
"description": "Or paste the MCP manifest (serverInfo + tools) directly"
}
}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"ok": {
"type": "boolean"
},
"type": "object",
"niche": {
"type": "string"
}
}
}
}
}
}
},
"delivery": {
"note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
"order": "compute -> failure gate -> verify -> settle -> deliver",
"scope": "this covers service FAILURE, not verdict quality",
"policy": "no-charge-on-service-failure",
"verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
"behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
},
"signature": {
"alg": "ed25519",
"canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
"verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
"jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
"envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
"sigEncoding": "hex(64B raw)",
"publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
}
},
"x402Version": 2
},
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x10800a5a5B9d72251566EC651E862A8b4B427dE0",
"amount": "50000",
"scheme": "exact",
"network": "eip155:8453",
"mimeType": "application/json",
"resource": "https://api.hergertsynthora.com/v1/mtasts",
"description": "SYNTHORA mtasts: sMTP transport-security audit: MTA-STS (RFC 8461) + TLS-RPT (RFC 8460). Resolves the policy DNS records, fetches and parses the well-known policy file, cross-validates the policy mx: patterns against the domain's real MX, and returns an enforce/report verdict. Complements SPF/DKIM/DMARC auditing with the TLS transport layer. Deterministic, Ed25519-signed. SYNTHORA.",
"maxAmountRequired": "50000",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://api.hergertsynthora.com/v1/mtasts",
"tags": [
"domain",
"email",
"security",
"infrastructure",
"threat-intel",
"exposure"
],
"iconUrl": "https://api.hergertsynthora.com/icon.svg",
"mimeType": "application/json",
"description": "SYNTHORA mtasts: sMTP transport-security audit: MTA-STS (RFC 8461) + TLS-RPT (RFC 8460). Resolves the policy DNS records, fetches and parses the well-known policy file, cross-validates the policy mx: patterns against the domain's real MX, and returns an enforce/report verdict. Complements SPF/DKIM/DMARC auditing with the TLS transport layer. Deterministic, Ed25519-signed. SYNTHORA.",
"serviceName": "SYNTHORA"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"op": "check",
"domain": "example.com"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"ok": true,
"niche": "mtasts",
"result": {
"score": 100,
"domain": "example.com",
"issues": [],
"mta_sts": {
"mx": [
"*.mail.example.com"
],
"mode": "enforce",
"max_age": 604800,
"dns_present": true,
"mx_matches_dns": true,
"policy_reachable": true
},
"tls_rpt": {
"present": true
},
"verdict": "enforced+reporting"
}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object",
"required": [
"domain"
],
"properties": {
"op": {
"enum": [
"check",
"mtasts",
"tlsrpt"
],
"type": "string",
"description": "Audit scope (default check = full)"
},
"domain": {
"type": "string",
"description": "Domain or email address to audit"
}
}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"ok": {
"type": "boolean"
},
"type": "object",
"niche": {
"type": "string"
}
}
}
}
}
}
},
"delivery": {
"note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
"order": "compute -> failure gate -> verify -> settle -> deliver",
"scope": "this covers service FAILURE, not verdict quality",
"policy": "no-charge-on-service-failure",
"verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
"behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
},
"signature": {
"alg": "ed25519",
"canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
"verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
"jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
"envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
"sigEncoding": "hex(64B raw)",
"publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
}
},
"x402Version": 2
},
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x10800a5a5B9d72251566EC651E862A8b4B427dE0",
"amount": "50000",
"scheme": "exact",
"network": "eip155:8453",
"mimeType": "application/json",
"resource": "https://api.hergertsynthora.com/v1/ohlcv-candles",
"description": "Real-time and historical OHLCV candles (open/high/low/close/volume) for any crypto pair, any interval. For backtesting and signal agents. Free source. $0.01 USDC via x402 on Base. SYNTHORA. First 3 calls FREE per wallet — send header X-WALLET: 0x<addr>. No charge on upstream failure.",
"maxAmountRequired": "50000",
"maxTimeoutSeconds": 300
}
],
"freeTier": {
"note": "send header X-WALLET: 0x<your Base address> for a free trial",
"header": "X-WALLET",
"callsPerWallet": 3
},
"resource": {
"url": "https://api.hergertsynthora.com/v1/ohlcv-candles",
"iconUrl": "https://api.hergertsynthora.com/icon.svg",
"mimeType": "application/json",
"description": "Real-time and historical OHLCV candles (open/high/low/close/volume) for any crypto pair, any interval. For backtesting and signal agents. Free source. $0.01 USDC via x402 on Base. SYNTHORA. First 3 calls FREE per wallet — send header X-WALLET: 0x<addr>. No charge on upstream failure.",
"serviceName": "SYNTHORA"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"limit": 24,
"symbol": "ETHUSDT",
"interval": "1h"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"ok": true,
"niche": "ohlcv-candles",
"result": {}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object",
"required": [
"symbol",
"interval",
"limit"
],
"properties": {
"limit": {
"type": "integer",
"description": "limit"
},
"symbol": {
"type": "string",
"description": "symbol"
},
"interval": {
"type": "string",
"description": "interval"
}
}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"ok": {
"type": "boolean"
},
"type": "object",
"niche": {
"type": "string"
}
}
}
}
}
}
},
"delivery": {
"note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
"order": "compute -> failure gate -> verify -> settle -> deliver",
"scope": "this covers service FAILURE, not verdict quality",
"policy": "no-charge-on-service-failure",
"verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
"behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
},
"signature": {
"alg": "ed25519",
"canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
"verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
"jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
"envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
"sigEncoding": "hex(64B raw)",
"publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
}
},
"x402Version": 2
},
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x10800a5a5B9d72251566EC651E862A8b4B427dE0",
"amount": "50000",
"scheme": "exact",
"network": "eip155:8453",
"mimeType": "application/json",
"resource": "https://api.hergertsynthora.com/v1/onchain",
"description": "SYNTHORA Onchain Primitives: multichain (Base/Ethereum/Polygon/Arbitrum/Optimism) transaction receipts, tx lookup, wallet nonce, contract/proxy (EIP-1967) detection, ENS resolution, ERC20 + native balances, contract introspection. Deterministic, Ed25519-signed. 0.001 USDC via x402 on Base. First 3 calls FREE per wallet — send header 'X-WALLET: 0x<your Base address>' (no payment); after that 0.001 USDC per call.",
"maxAmountRequired": "50000",
"maxTimeoutSeconds": 300
}
],
"freeTier": {
"note": "send header X-WALLET: 0x<your Base address> for a free trial",
"header": "X-WALLET",
"callsPerWallet": 3
},
"resource": {
"url": "https://api.hergertsynthora.com/v1/onchain",
"iconUrl": "https://api.hergertsynthora.com/icon.svg",
"mimeType": "application/json",
"description": "SYNTHORA Onchain Primitives: multichain (Base/Ethereum/Polygon/Arbitrum/Optimism) transaction receipts, tx lookup, wallet nonce, contract/proxy (EIP-1967) detection, ENS resolution, ERC20 + native balances, contract introspection. Deterministic, Ed25519-signed. 0.001 USDC via x402 on Base. First 3 calls FREE per wallet — send header 'X-WALLET: 0x<your Base address>' (no payment); after that 0.001 USDC per call.",
"serviceName": "SYNTHORA"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"op": "ens",
"name": "vitalik.eth"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"ok": true,
"niche": "onchain",
"result": {
"op": "ens",
"name": "vitalik.eth",
"found": true,
"signed": "ed25519",
"address": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045"
}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object",
"required": [
"op"
],
"properties": {
"op": {
"enum": [
"ens",
"receipt",
"tx",
"nonce",
"code",
"proxy",
"balance",
"erc20-balance",
"contract",
"network"
],
"type": "string",
"description": "Operation to perform"
},
"hash": {
"type": "string",
"description": "Tx hash 0x… (receipt/tx)"
},
"name": {
"type": "string",
"description": "ENS name e.g. vitalik.eth (ens)"
},
"chain": {
"enum": [
"base",
"ethereum",
"polygon",
"arbitrum",
"optimism"
],
"type": "string",
"description": "Chain (default ethereum)"
},
"token": {
"type": "string",
"description": "ERC20 token address (erc20-balance)"
},
"address": {
"type": "string",
"description": "Address 0x… (nonce/code/proxy/balance/contract)"
}
}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"ok": {
"type": "boolean"
},
"type": "object",
"niche": {
"type": "string"
}
}
}
}
}
}
},
"delivery": {
"note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
"order": "compute -> failure gate -> verify -> settle -> deliver",
"scope": "this covers service FAILURE, not verdict quality",
"policy": "no-charge-on-service-failure",
"verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
"behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
},
"signature": {
"alg": "ed25519",
"canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
"verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
"jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
"envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
"sigEncoding": "hex(64B raw)",
"publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
}
},
"x402Version": 2
},
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x10800a5a5B9d72251566EC651E862A8b4B427dE0",
"amount": "100000",
"scheme": "exact",
"network": "eip155:8453",
"mimeType": "application/json",
"resource": "https://api.hergertsynthora.com/v1/openinterest",
"description": "SYNTHORA Open Interest Oracle: live perpetual futures open interest, funding rates, mark price, premium and crowded long/short signal for 230+ assets via Hyperliquid. Ed25519-signed. First 3 calls FREE per wallet — send header 'X-WALLET: 0x<your Base address>' (no payment).",
"maxAmountRequired": "100000",
"maxTimeoutSeconds": 300
}
],
"freeTier": {
"note": "send header X-WALLET: 0x<your Base address> for a free trial",
"header": "X-WALLET",
"callsPerWallet": 5
},
"resource": {
"url": "https://api.hergertsynthora.com/v1/openinterest",
"tags": [
"crypto",
"markets",
"derivatives",
"price",
"x402",
"signed-verdict"
],
"iconUrl": "https://api.hergertsynthora.com/icon.svg",
"mimeType": "application/json",
"description": "SYNTHORA Open Interest Oracle: live perpetual futures open interest, funding rates, mark price, premium and crowded long/short signal for 230+ assets via Hyperliquid. Ed25519-signed. First 3 calls FREE per wallet — send header 'X-WALLET: 0x<your Base address>' (no payment).",
"serviceName": "SYNTHORA"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"asset": "BTC"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"ok": true,
"niche": "open_interest",
"result": {
"asset": "BTC",
"signal": "neutral",
"signed": "ed25519",
"mark_price": 97500,
"funding_rate": 0.0000125,
"open_interest_usd": 2260000000
}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object",
"required": [],
"properties": {
"asset": {
"type": "string",
"description": "Perp symbol e.g. BTC, ETH, SOL. Omit for top-10 by OI"
}
}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"ok": {
"type": "boolean"
},
"type": "object",
"niche": {
"type": "string"
}
}
}
}
}
}
},
"delivery": {
"note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
"order": "compute -> failure gate -> verify -> settle -> deliver",
"scope": "this covers service FAILURE, not verdict quality",
"policy": "no-charge-on-service-failure",
"verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
"behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
},
"signature": {
"alg": "ed25519",
"canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
"verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
"jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
"envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
"sigEncoding": "hex(64B raw)",
"publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
}
},
"x402Version": 2
},
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x10800a5a5B9d72251566EC651E862A8b4B427dE0",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453",
"mimeType": "application/json",
"resource": "https://api.hergertsynthora.com/v1/payto-preflight",
"description": "x402 PayTo Pre-Flight: verify a payTo address against the live registry before paying. Detects payTo hijacking, stale endpoints and unknown resources. Deterministic, <200ms, no external network. 0.005 USDC via x402 on Base. SYNTHORA.",
"maxAmountRequired": "5000",
"maxTimeoutSeconds": 300
}
],
"freeTier": {
"note": "send header X-WALLET: 0x<your Base address> for a free trial",
"header": "X-WALLET",
"callsPerWallet": 3
},
"resource": {
"url": "https://api.hergertsynthora.com/v1/payto-preflight",
"iconUrl": "https://api.hergertsynthora.com/icon.svg",
"mimeType": "application/json",
"description": "x402 PayTo Pre-Flight: verify a payTo address against the live registry before paying. Detects payTo hijacking, stale endpoints and unknown resources. Deterministic, <200ms, no external network. 0.005 USDC via x402 on Base. SYNTHORA.",
"serviceName": "SYNTHORA"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"chain": "eip155:8453",
"endpoint_url": "https://onchain.hergertsynthora.com/service",
"expected_payTo": "0x10800a5a5B9d72251566EC651E862A8b4B427dE0"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"ok": true,
"niche": "payto_preflight",
"result": {
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"active": true,
"reason": "payTo vivo coincide con el esperado, endpoint active y fresco",
"source": "scout_resource",
"matched": true,
"network": "eip155:8453",
"verdict": "safe",
"chain_ok": true,
"endpoint": "https://onchain.hergertsynthora.com/service",
"price_usd": 0.001,
"checked_at": "2026-08-07T21:00:00Z",
"live_payTo": "0x10800a5a5B9d72251566EC651E862A8b4B427dE0",
"match_kind": "exact",
"freshness_s": 120,
"expected_payTo": "0x10800a5a5B9d72251566EC651E862A8b4B427dE0"
}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object",
"required": [
"endpoint_url"
],
"properties": {
"chain": {
"type": "string",
"description": "expected chain, e.g. eip155:8453"
},
"endpoint_url": {
"type": "string",
"description": "endpoint resource URL to verify"
},
"expected_payTo": {
"type": "string",
"description": "expected payTo address (0x...)"
}
}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"ok": {
"type": "boolean"
},
"type": "object",
"niche": {
"type": "string"
}
}
}
}
}
}
},
"delivery": {
"note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
"order": "compute -> failure gate -> verify -> settle -> deliver",
"scope": "this covers service FAILURE, not verdict quality",
"policy": "no-charge-on-service-failure",
"verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
"behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
},
"signature": {
"alg": "ed25519",
"canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
"verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
"jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
"envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
"sigEncoding": "hex(64B raw)",
"publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
}
},
"x402Version": 2
},
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x10800a5a5B9d72251566EC651E862A8b4B427dE0",
"amount": "20000",
"scheme": "exact",
"network": "eip155:8453",
"mimeType": "application/json",
"resource": "https://api.hergertsynthora.com/v1/perps",
"description": "SYNTHORA Perps Snapshot: live Hyperliquid perpetual futures snapshot per asset — mark price, oracle price, hourly funding rate (with 8h and APR derivations), open interest (USD), premium and 24h volume for 230+ perps, keyless. Complements the Open Interest oracle with the raw single-shot data a trading agent needs. Ed25519-signed.",
"maxAmountRequired": "20000",
"maxTimeoutSeconds": 300
}
],
"freeTier": {
"note": "send header X-WALLET: 0x<your Base address> for a free trial",
"header": "X-WALLET",
"callsPerWallet": 5
},
"resource": {
"url": "https://api.hergertsynthora.com/v1/perps",
"tags": [
"crypto",
"markets",
"derivatives",
"price",
"x402",
"signed-verdict"
],
"iconUrl": "https://api.hergertsynthora.com/icon.svg",
"mimeType": "application/json",
"description": "SYNTHORA Perps Snapshot: live Hyperliquid perpetual futures snapshot per asset — mark price, oracle price, hourly funding rate (with 8h and APR derivations), open interest (USD), premium and 24h volume for 230+ perps, keyless. Complements the Open Interest oracle with the raw single-shot data a trading agent needs. Ed25519-signed.",
"serviceName": "SYNTHORA"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"asset": "BTC"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"ok": true,
"niche": "perps",
"result": {
"mark": 97500,
"asset": "BTC",
"oracle": 97490,
"signed": "ed25519",
"premium": 0.0001,
"day_volume": 1850000000,
"funding_rate": 0.0000125,
"open_interest": 2260000000,
"funding_apr_pct": 10.95
}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object",
"required": [],
"properties": {
"asset": {
"type": "string",
"description": "Perp symbol e.g. BTC, ETH, SOL. Omit for top-10 by open interest"
},
"limit": {
"type": "integer",
"description": "Rows when no asset given (1-50, default 10)"
},
"history": {
"type": "boolean",
"description": "Include recent 8h funding history for the asset (default true)"
}
}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"ok": {
"type": "boolean"
},
"type": "object",
"niche": {
"type": "string"
}
}
}
}
}
}
},
"delivery": {
"note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
"order": "compute -> failure gate -> verify -> settle -> deliver",
"scope": "this covers service FAILURE, not verdict quality",
"policy": "no-charge-on-service-failure",
"verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
"behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
},
"signature": {
"alg": "ed25519",
"canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
"verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
"jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
"envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
"sigEncoding": "hex(64B raw)",
"publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
}
},
"x402Version": 2
},
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x10800a5a5B9d72251566EC651E862A8b4B427dE0",
"amount": "50000",
"scheme": "exact",
"network": "eip155:8453",
"mimeType": "application/json",
"resource": "https://api.hergertsynthora.com/v1/polymarket-markets",
"description": "SYNTHORA polymarket-markets: mercados de prediccion filtrados sobre dos paginas fusionadas; si no hay coincidencias lo dice en vez de devolver ruido.",
"maxAmountRequired": "50000",
"maxTimeoutSeconds": 300
}
],
"freeTier": {
"note": "send header X-WALLET: 0x<your Base address> for a free trial",
"header": "X-WALLET",
"callsPerWallet": 3
},
"resource": {
"url": "https://api.hergertsynthora.com/v1/polymarket-markets",
"tags": [
"prediction-markets",
"odds",
"crypto",
"x402",
"signed-verdict",
"usdc"
],
"iconUrl": "https://api.hergertsynthora.com/icon.svg",
"mimeType": "application/json",
"description": "SYNTHORA polymarket-markets: mercados de prediccion filtrados sobre dos paginas fusionadas; si no hay coincidencias lo dice en vez de devolver ruido.",
"serviceName": "SYNTHORA"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"input": "bitcoin"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"ok": true,
"niche": "polymarket_markets",
"result": {
"nota": "ningun mercado activo coincide con ese filtro; no se devuelven otros para no dar por bueno lo que no se pidio",
"filtro": "bitcoin",
"fuente": "<omitido en el ejemplo publico>",
"markets": [],
"as_of_utc": "2026-08-05T16:31:36Z",
"latencia_s": 0.19,
"n_mercados": 0,
"sin_coincidencias": true,
"mercados_minados__observador_1": 0
}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object",
"required": [
"input"
],
"properties": {
"input": {
"type": "string",
"description": "SYNTHORA polymarket-markets: mercados de prediccion filtrados sobre dos paginas fusionadas; si no hay coincidencias lo dice en vez de devolver ruido."
}
}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"ok": {
"type": "boolean"
},
"type": "object",
"niche": {
"type": "string"
}
}
}
}
}
}
},
"delivery": {
"note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
"order": "compute -> failure gate -> verify -> settle -> deliver",
"scope": "this covers service FAILURE, not verdict quality",
"policy": "no-charge-on-service-failure",
"verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
"behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
},
"signature": {
"alg": "ed25519",
"canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
"verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
"jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
"envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
"sigEncoding": "hex(64B raw)",
"publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
}
},
"x402Version": 2
},
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x10800a5a5B9d72251566EC651E862A8b4B427dE0",
"amount": "100000",
"scheme": "exact",
"network": "eip155:8453",
"mimeType": "application/json",
"resource": "https://api.hergertsynthora.com/v1/prediction",
"description": "Prediction Market Probability Oracle — real Polymarket odds (p_yes/p_no, volume, liquidity), not LLM guesses. POST a question; Ed25519-signed. For agents needing calibrated event probabilities.",
"maxAmountRequired": "100000",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://api.hergertsynthora.com/v1/prediction",
"iconUrl": "https://api.hergertsynthora.com/icon.svg",
"mimeType": "application/json",
"description": "Prediction Market Probability Oracle — real Polymarket odds (p_yes/p_no, volume, liquidity), not LLM guesses. POST a question; Ed25519-signed. For agents needing calibrated event probabilities.",
"serviceName": "SYNTHORA"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"input": "0x0000000000000000000000000000000000000000"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"ok": true,
"niche": "prediction_oracle",
"result": {},
"receipt": {}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object",
"required": [
"input"
],
"properties": {
"input": {
"type": "string",
"description": "Prediction Market Probability Oracle — real Polymarket odds (p_yes/p_no, volume, liquidity), not LLM guesses. POST a question; Ed25519-signed. For agents needing calibrated event probabilities."
}
}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"ok": {
"type": "boolean"
},
"type": "object",
"niche": {
"type": "string"
}
}
}
}
}
}
},
"delivery": {
"note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
"order": "compute -> failure gate -> verify -> settle -> deliver",
"scope": "this covers service FAILURE, not verdict quality",
"policy": "no-charge-on-service-failure",
"verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
"behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
},
"signature": {
"alg": "ed25519",
"canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
"verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
"jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
"envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
"sigEncoding": "hex(64B raw)",
"publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
}
},
"x402Version": 2
},
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x10800a5a5B9d72251566EC651E862A8b4B427dE0",
"amount": "50000",
"scheme": "exact",
"network": "eip155:8453",
"mimeType": "application/json",
"resource": "https://api.hergertsynthora.com/v1/prediction-markets",
"description": "SYNTHORA prediction-markets: top prediction markets from Polymarket and Kalshi — implied probability, bid-ask spread, liquidity, volume, open interest and freshness seal (UTC timestamp). Filter with {\"limit\": N, \"source\": \"all|polymarket|kalshi\", \"min_liquidity\": usd}. For autonomous trading, political-risk and allocation agents. $0.05 USDC via x402 on Base. First 3 calls FREE per wallet — send header X-WALLET: 0x<addr>. No charge on upstream failure.",
"maxAmountRequired": "50000",
"maxTimeoutSeconds": 300
}
],
"freeTier": {
"note": "send header X-WALLET: 0x<your Base address> for a free trial",
"header": "X-WALLET",
"callsPerWallet": 3
},
"resource": {
"url": "https://api.hergertsynthora.com/v1/prediction-markets",
"iconUrl": "https://api.hergertsynthora.com/icon.svg",
"mimeType": "application/json",
"description": "SYNTHORA prediction-markets: top prediction markets from Polymarket and Kalshi — implied probability, bid-ask spread, liquidity, volume, open interest and freshness seal (UTC timestamp). Filter with {\"limit\": N, \"source\": \"all|polymarket|kalshi\", \"min_liquidity\": usd}. For autonomous trading, political-risk and allocation agents. $0.05 USDC via x402 on Base. First 3 calls FREE per wallet — send header X-WALLET: 0x<addr>. No charge on upstream failure.",
"serviceName": "SYNTHORA"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"limit": 10,
"source": "all",
"min_liquidity": 1000
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"ok": true,
"niche": "prediction_markets",
"result": {
"count": 1,
"source": "all",
"markets": [
{
"id": "559651",
"spread": 0.01,
"end_date": "2026-12-31T00:00:00Z",
"exchange": "polymarket",
"question": "Xi Jinping out before 2027?",
"volume_usd": 1234567.89,
"liquidity_usd": 278050.28,
"probability_yes": 0.05
}
],
"freshness_utc": "2026-08-07T12:00:00Z",
"total_liquidity_usd": 278050.28
}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object",
"required": [],
"properties": {
"limit": {
"type": "integer",
"description": "max markets to return (1-50, default 10)"
},
"source": {
"enum": [
"all",
"polymarket",
"kalshi"
],
"type": "string",
"description": "exchange filter"
},
"min_liquidity": {
"type": "number",
"description": "minimum liquidity in USD (default 1000)"
}
}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"ok": {
"type": "boolean"
},
"type": "object",
"niche": {
"type": "string"
}
}
}
}
}
}
},
"delivery": {
"note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
"order": "compute -> failure gate -> verify -> settle -> deliver",
"scope": "this covers service FAILURE, not verdict quality",
"policy": "no-charge-on-service-failure",
"verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
"behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
},
"signature": {
"alg": "ed25519",
"canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
"verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
"jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
"envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
"sigEncoding": "hex(64B raw)",
"publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
}
},
"x402Version": 2
},
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x10800a5a5B9d72251566EC651E862A8b4B427dE0",
"amount": "50000",
"scheme": "exact",
"network": "eip155:8453",
"mimeType": "application/json",
"resource": "https://api.hergertsynthora.com/v1/protocol-revenue",
"description": "Real-time fee revenue and 24h/7d/30d earnings for any DeFi protocol via DefiLlama Fees API.",
"maxAmountRequired": "50000",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://api.hergertsynthora.com/v1/protocol-revenue",
"iconUrl": "https://api.hergertsynthora.com/icon.svg",
"mimeType": "application/json",
"description": "Real-time fee revenue and 24h/7d/30d earnings for any DeFi protocol via DefiLlama Fees API.",
"serviceName": "SYNTHORA"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"protocol": "uniswap"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"ok": true,
"niche": "protocol_revenue",
"result": {},
"receipt": {}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object",
"properties": {
"input": {
"type": "string",
"description": "Real-time fee revenue and 24h/7d/30d earnings for any DeFi protocol via DefiLlama Fees API."
}
}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"ok": {
"type": "boolean"
},
"type": "object",
"niche": {
"type": "string"
}
}
}
}
}
}
},
"delivery": {
"note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
"order": "compute -> failure gate -> verify -> settle -> deliver",
"scope": "this covers service FAILURE, not verdict quality",
"policy": "no-charge-on-service-failure",
"verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
"behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
},
"signature": {
"alg": "ed25519",
"canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
"verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
"jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
"envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
"sigEncoding": "hex(64B raw)",
"publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
}
},
"x402Version": 2
},
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x10800a5a5B9d72251566EC651E862A8b4B427dE0",
"amount": "20000",
"scheme": "exact",
"network": "eip155:8453",
"mimeType": "application/json",
"resource": "https://api.hergertsynthora.com/v1/protocol-tvl",
"description": "SYNTHORA protocol-tvl: tVL de un protocolo con su CUOTA sobre el TVL total y su puesto en el ranking: contexto que el dato suelto no da.",
"maxAmountRequired": "20000",
"maxTimeoutSeconds": 300
}
],
"freeTier": {
"note": "send header X-WALLET: 0x<your Base address> for a free trial",
"header": "X-WALLET",
"callsPerWallet": 3
},
"resource": {
"url": "https://api.hergertsynthora.com/v1/protocol-tvl",
"tags": [
"defi",
"onchain",
"analytics",
"markets",
"x402",
"signed-verdict"
],
"iconUrl": "https://api.hergertsynthora.com/icon.svg",
"mimeType": "application/json",
"description": "SYNTHORA protocol-tvl: tVL de un protocolo con su CUOTA sobre el TVL total y su puesto en el ranking: contexto que el dato suelto no da.",
"serviceName": "SYNTHORA"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"protocol": "lido"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"ok": true,
"niche": "protocol_tvl",
"result": {
"senal": "concentra el 3.6007% del TVL DeFi total y ocupa el puesto 4",
"fuente": "<omitido en el ejemplo publico>",
"tvl_usd": 17522595363.252792,
"protocol": "lido",
"as_of_utc": "2026-08-05T16:31:36Z",
"latencia_s": 0.52,
"puesto_por_tvl": 4,
"tvl_total_defi_usd": 486638092376.16034,
"cuota_sobre_tvl_total_pct": 3.6007
}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object",
"properties": {
"input": {
"type": "string",
"description": "SYNTHORA protocol-tvl: tVL de un protocolo con su CUOTA sobre el TVL total y su puesto en el ranking: contexto que el dato suelto no da."
}
}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"ok": {
"type": "boolean"
},
"type": "object",
"niche": {
"type": "string"
}
}
}
}
}
}
},
"delivery": {
"note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
"order": "compute -> failure gate -> verify -> settle -> deliver",
"scope": "this covers service FAILURE, not verdict quality",
"policy": "no-charge-on-service-failure",
"verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
"behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
},
"signature": {
"alg": "ed25519",
"canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
"verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
"jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
"envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
"sigEncoding": "hex(64B raw)",
"publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
}
},
"x402Version": 2
},
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x10800a5a5B9d72251566EC651E862A8b4B427dE0",
"amount": "30000",
"scheme": "exact",
"network": "eip155:8453",
"mimeType": "application/json",
"resource": "https://api.hergertsynthora.com/v1/registry-watch",
"description": "SYNTHORA registry-watch: pay-per-event feed of signed Ed25519 deltas from the x402/M2M endpoint registry — new and changed endpoints, payTos and listings. Pull with {\"since\": \"<cursor|ISO>\", \"slug\": \"<slug>\", \"limit\": <=200}; each delta is individually signed and the full response is signed again (double provenance). $0.03 USDC on Base.",
"maxAmountRequired": "30000",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://api.hergertsynthora.com/v1/registry-watch",
"iconUrl": "https://api.hergertsynthora.com/icon.svg",
"mimeType": "application/json",
"description": "SYNTHORA registry-watch: pay-per-event feed of signed Ed25519 deltas from the x402/M2M endpoint registry — new and changed endpoints, payTos and listings. Pull with {\"since\": \"<cursor|ISO>\", \"slug\": \"<slug>\", \"limit\": <=200}; each delta is individually signed and the full response is signed again (double provenance). $0.03 USDC on Base.",
"serviceName": "SYNTHORA"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"input": "0x0000000000000000000000000000000000000000"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"ok": true,
"niche": "registry_watch",
"result": {},
"receipt": {}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object",
"required": [
"input"
],
"properties": {
"input": {
"type": "string",
"description": "SYNTHORA registry-watch: pay-per-event feed of signed Ed25519 deltas from the x402/M2M endpoint registry — new and changed endpoints, payTos and listings. Pull with {\"since\": \"<cursor|ISO>\", \"slug\": \"<slug>\", \"limit\": <=200}; each delta is individually signed and the full response is signed again (double provenance). $0.03 USDC on Base."
}
}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"ok": {
"type": "boolean"
},
"type": "object",
"niche": {
"type": "string"
}
}
}
}
}
}
},
"delivery": {
"note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
"order": "compute -> failure gate -> verify -> settle -> deliver",
"scope": "this covers service FAILURE, not verdict quality",
"policy": "no-charge-on-service-failure",
"verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
"behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
},
"signature": {
"alg": "ed25519",
"canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
"verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
"jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
"envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
"sigEncoding": "hex(64B raw)",
"publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
}
},
"x402Version": 2
},
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x10800a5a5B9d72251566EC651E862A8b4B427dE0",
"amount": "50000",
"scheme": "exact",
"network": "eip155:8453",
"mimeType": "application/json",
"resource": "https://api.hergertsynthora.com/v1/regwatch",
"description": "SYNTHORA regwatch: x402 Registry Watch: signed Ed25519 deltas of the x402/A2A endpoint registry (payTo/listings/endpoints). Pay-per-event feed pull. POST {\"since\":\"<cursor|ISO>\",\"slug\":\"<slug>\",\"limit\":<=200}.",
"maxAmountRequired": "50000",
"maxTimeoutSeconds": 300
}
],
"freeTier": {
"note": "send header X-WALLET: 0x<your Base address> for a free trial",
"header": "X-WALLET",
"callsPerWallet": 5
},
"resource": {
"url": "https://api.hergertsynthora.com/v1/regwatch",
"tags": [
"registry",
"monitoring",
"x402",
"signed-verdict",
"usdc"
],
"iconUrl": "https://api.hergertsynthora.com/icon.svg",
"mimeType": "application/json",
"description": "SYNTHORA regwatch: x402 Registry Watch: signed Ed25519 deltas of the x402/A2A endpoint registry (payTo/listings/endpoints). Pay-per-event feed pull. POST {\"since\":\"<cursor|ISO>\",\"slug\":\"<slug>\",\"limit\":<=200}.",
"serviceName": "SYNTHORA"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"slug": "x402",
"limit": 10,
"since": "2026-01-01"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"ok": true,
"niche": "registry_watch",
"result": {
"feed": [],
"as_of": "2026-08-05T16:48:43Z",
"count": 0,
"cursor": null,
"source": "registry-watch"
}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object",
"required": [
"slug"
],
"properties": {
"slug": {
"type": "string"
},
"limit": {
"type": "integer"
},
"since": {
"type": "string"
}
}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"ok": {
"type": "boolean"
},
"type": "object",
"niche": {
"type": "string"
}
}
}
}
}
}
},
"delivery": {
"note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
"order": "compute -> failure gate -> verify -> settle -> deliver",
"scope": "this covers service FAILURE, not verdict quality",
"policy": "no-charge-on-service-failure",
"verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
"behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
},
"signature": {
"alg": "ed25519",
"canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
"verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
"jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
"envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
"sigEncoding": "hex(64B raw)",
"publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
}
},
"x402Version": 2
},
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x10800a5a5B9d72251566EC651E862A8b4B427dE0",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453",
"mimeType": "application/json",
"resource": "https://api.hergertsynthora.com/v1/rpc-ens",
"description": "ENS forward/reverse resolution: name->address and address->name. Deterministic, Ed25519-signed. First 3 calls FREE per wallet — send header X-WALLET: 0x<addr>. No charge on upstream failure. $0.002 USDC via x402 on Base. SYNTHORA.",
"maxAmountRequired": "5000",
"maxTimeoutSeconds": 300
}
],
"freeTier": {
"note": "send header X-WALLET: 0x<your Base address> for a free trial",
"header": "X-WALLET",
"callsPerWallet": 3
},
"resource": {
"url": "https://api.hergertsynthora.com/v1/rpc-ens",
"iconUrl": "https://api.hergertsynthora.com/icon.svg",
"mimeType": "application/json",
"description": "ENS forward/reverse resolution: name->address and address->name. Deterministic, Ed25519-signed. First 3 calls FREE per wallet — send header X-WALLET: 0x<addr>. No charge on upstream failure. $0.002 USDC via x402 on Base. SYNTHORA.",
"serviceName": "SYNTHORA"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"name": "vitalik.eth"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"ok": true,
"niche": "rpc-ens",
"result": {
"op": "ens"
}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object",
"required": [
"name"
],
"properties": {
"name": {
"type": "string",
"description": "name"
}
}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"ok": {
"type": "boolean"
},
"type": "object",
"niche": {
"type": "string"
}
}
}
}
}
}
},
"delivery": {
"note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
"order": "compute -> failure gate -> verify -> settle -> deliver",
"scope": "this covers service FAILURE, not verdict quality",
"policy": "no-charge-on-service-failure",
"verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
"behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
},
"signature": {
"alg": "ed25519",
"canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
"verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
"jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
"envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
"sigEncoding": "hex(64B raw)",
"publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
}
},
"x402Version": 2
},
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x10800a5a5B9d72251566EC651E862A8b4B427dE0",
"amount": "50000",
"scheme": "exact",
"network": "eip155:8453",
"mimeType": "application/json",
"resource": "https://api.hergertsynthora.com/v1/sanctions-screen",
"description": "SYNTHORA sanctions-screen: sanctions screening with MATCH / CLEAR verdict over 4 official downloads (OFAC SDN primary and alias lists, UN, OpenSanctions). Multilingual, tested on Cyrillic transliterations.",
"maxAmountRequired": "50000",
"maxTimeoutSeconds": 300
}
],
"freeTier": {
"note": "send header X-WALLET: 0x<your Base address> for a free trial",
"header": "X-WALLET",
"callsPerWallet": 5
},
"resource": {
"url": "https://api.hergertsynthora.com/v1/sanctions-screen",
"iconUrl": "https://api.hergertsynthora.com/icon.svg",
"mimeType": "application/json",
"description": "SYNTHORA sanctions-screen: sanctions screening with MATCH / CLEAR verdict over 4 official downloads (OFAC SDN primary and alias lists, UN, OpenSanctions). Multilingual, tested on Cyrillic transliterations.",
"serviceName": "SYNTHORA"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"name": "Vladimir Putin"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"ok": true,
"niche": "sanctions_screen",
"result": {},
"receipt": {}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object",
"properties": {
"input": {
"type": "string",
"description": "SYNTHORA sanctions-screen: sanctions screening with MATCH / CLEAR verdict over 4 official downloads (OFAC SDN primary and alias lists, UN, OpenSanctions). Multilingual, tested on Cyrillic transliterations."
}
}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"ok": {
"type": "boolean"
},
"type": "object",
"niche": {
"type": "string"
}
}
}
}
}
}
},
"delivery": {
"note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
"order": "compute -> failure gate -> verify -> settle -> deliver",
"scope": "this covers service FAILURE, not verdict quality",
"policy": "no-charge-on-service-failure",
"verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
"behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
},
"signature": {
"alg": "ed25519",
"canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
"verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
"jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
"envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
"sigEncoding": "hex(64B raw)",
"publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
}
},
"x402Version": 2
},
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x10800a5a5B9d72251566EC651E862A8b4B427dE0",
"amount": "100000",
"scheme": "exact",
"network": "eip155:8453",
"mimeType": "application/json",
"resource": "https://api.hergertsynthora.com/v1/slippage",
"description": "Slippage and price-impact oracle for any crypto pair: estimates expected slippage, price impact and effective execution price for a given trade size from live order-book depth and liquidity. Answers 'expected slippage for this swap', 'price impact of my order', 'orderbook liquidity / slippage', 'how much will I move the market' for execution and routing agents. Deterministic, Ed25519-signed. $0.001 USDC via x402 on Base. First 3 calls FREE per wallet — send header X-WALLET: 0x<your Base address>. No charge on upstream failure. SYNTHORA.",
"maxAmountRequired": "100000",
"maxTimeoutSeconds": 300
}
],
"freeTier": {
"note": "send header X-WALLET: 0x<your Base address> for a free trial",
"header": "X-WALLET",
"callsPerWallet": 3
},
"resource": {
"url": "https://api.hergertsynthora.com/v1/slippage",
"iconUrl": "https://api.hergertsynthora.com/icon.svg",
"mimeType": "application/json",
"description": "Slippage and price-impact oracle for any crypto pair: estimates expected slippage, price impact and effective execution price for a given trade size from live order-book depth and liquidity. Answers 'expected slippage for this swap', 'price impact of my order', 'orderbook liquidity / slippage', 'how much will I move the market' for execution and routing agents. Deterministic, Ed25519-signed. $0.001 USDC via x402 on Base. First 3 calls FREE per wallet — send header X-WALLET: 0x<your Base address>. No charge on upstream failure. SYNTHORA.",
"serviceName": "SYNTHORA"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"chain": "base",
"fee_tier": 500,
"token_in": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"amount_in": 1000000,
"token_out": "0x4200000000000000000000000000000000000006"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"ok": true,
"niche": "slippage_oracle",
"result": {},
"receipt": {}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object",
"required": [
"chain"
],
"properties": {
"chain": {
"type": "string"
},
"fee_tier": {
"type": "integer"
},
"token_in": {
"type": "string"
},
"amount_in": {
"type": "integer"
},
"token_out": {
"type": "string"
}
}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"ok": {
"type": "boolean"
},
"type": "object",
"niche": {
"type": "string"
}
}
}
}
}
}
},
"delivery": {
"note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
"order": "compute -> failure gate -> verify -> settle -> deliver",
"scope": "this covers service FAILURE, not verdict quality",
"policy": "no-charge-on-service-failure",
"verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
"behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
},
"signature": {
"alg": "ed25519",
"canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
"verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
"jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
"envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
"sigEncoding": "hex(64B raw)",
"publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
}
},
"x402Version": 2
},
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x10800a5a5B9d72251566EC651E862A8b4B427dE0",
"amount": "320000",
"scheme": "exact",
"network": "eip155:8453",
"mimeType": "application/json",
"resource": "https://api.hergertsynthora.com/v1/tokenrisk",
"description": "Detect honeypots, rug-pulls and malicious tokens before buying or approving. Combines GoPlus token-security (honeypot simulation, buy/sell tax, mintable, pausable, hidden owner, LP concentration, holder count) with bytecode analysis and owner-renounce checks into a safe/caution/risky/rug_pull verdict. Use it for token security, rug-pull detection and smart-contract risk. Ed25519-signed. 0.02 USDC on Base.",
"maxAmountRequired": "320000",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://api.hergertsynthora.com/v1/tokenrisk",
"iconUrl": "https://api.hergertsynthora.com/icon.svg",
"mimeType": "application/json",
"description": "Detect honeypots, rug-pulls and malicious tokens before buying or approving. Combines GoPlus token-security (honeypot simulation, buy/sell tax, mintable, pausable, hidden owner, LP concentration, holder count) with bytecode analysis and owner-renounce checks into a safe/caution/risky/rug_pull verdict. Use it for token security, rug-pull detection and smart-contract risk. Ed25519-signed. 0.02 USDC on Base.",
"serviceName": "SYNTHORA"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"chain": "base",
"address": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"ok": true,
"niche": "token_risk",
"result": {
"flags": [],
"goplus": {
"buy_tax": "0",
"sell_tax": "0",
"is_honeypot": "0"
},
"verdict": "safe",
"risk_level": "low",
"token_symbol": "USDC",
"owner_renounced": true
}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object",
"required": [
"address"
],
"properties": {
"chain": {
"enum": [
"base",
"ethereum"
],
"type": "string",
"description": "Chain (default base)"
},
"address": {
"type": "string",
"description": "Token contract address (0x...)"
}
}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"ok": {
"type": "boolean"
},
"type": "object",
"niche": {
"type": "string"
}
}
}
}
}
}
},
"delivery": {
"note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
"order": "compute -> failure gate -> verify -> settle -> deliver",
"scope": "this covers service FAILURE, not verdict quality",
"policy": "no-charge-on-service-failure",
"verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
"behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
},
"signature": {
"alg": "ed25519",
"canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
"verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
"jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
"envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
"sigEncoding": "hex(64B raw)",
"publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
}
},
"x402Version": 2
},
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x10800a5a5B9d72251566EC651E862A8b4B427dE0",
"amount": "50000",
"scheme": "exact",
"network": "eip155:8453",
"mimeType": "application/json",
"resource": "https://api.hergertsynthora.com/v1/translate",
"description": "SYNTHORA translate: translate any text between 100+ languages with automatic source-language detection. Preserves tone, formatting and placeholders. Deterministic JSON output, Ed25519-signed. SYNTHORA.",
"maxAmountRequired": "50000",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://api.hergertsynthora.com/v1/translate",
"tags": [
"nlp",
"language",
"inference",
"x402",
"signed-verdict",
"usdc"
],
"iconUrl": "https://api.hergertsynthora.com/icon.svg",
"mimeType": "application/json",
"description": "SYNTHORA translate: translate any text between 100+ languages with automatic source-language detection. Preserves tone, formatting and placeholders. Deterministic JSON output, Ed25519-signed. SYNTHORA.",
"serviceName": "SYNTHORA"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"text": "Hello world",
"target": "es"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"ok": true,
"niche": "translate",
"result": {
"chars": 11,
"signed": "ed25519",
"target": "es",
"detected": "en",
"translation": "Hola mundo"
}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object",
"required": [
"text",
"target"
],
"properties": {
"text": {
"type": "string",
"description": "Text to translate (max 4000 chars)"
},
"source": {
"type": "string",
"description": "Optional source language; auto-detected if omitted"
},
"target": {
"type": "string",
"description": "Target language ISO code or name, e.g. es, fr, Japanese"
}
}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"ok": {
"type": "boolean"
},
"type": "object",
"niche": {
"type": "string"
}
}
}
}
}
}
},
"delivery": {
"note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
"order": "compute -> failure gate -> verify -> settle -> deliver",
"scope": "this covers service FAILURE, not verdict quality",
"policy": "no-charge-on-service-failure",
"verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
"behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
},
"signature": {
"alg": "ed25519",
"canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
"verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
"jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
"envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
"sigEncoding": "hex(64B raw)",
"publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
}
},
"x402Version": 2
},
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x10800a5a5B9d72251566EC651E862A8b4B427dE0",
"amount": "100000",
"scheme": "exact",
"network": "eip155:8453",
"mimeType": "application/json",
"resource": "https://api.hergertsynthora.com/v1/txintent",
"description": "Tx Intent Classifier: decodes the REAL intent of an on-chain transaction (Base/Ethereum) and returns an Ed25519-signed risk verdict (safe/review/suspicious/dangerous). Catches unlimited approvals, opaque selectors, value-to-contract, reverted tx. POST {\"tx_hash\":\"0x..\",\"chain\":\"base\"} or {\"to\":\"0x..\",\"data\":\"0x..\"}.",
"maxAmountRequired": "100000",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://api.hergertsynthora.com/v1/txintent",
"iconUrl": "https://api.hergertsynthora.com/icon.svg",
"mimeType": "application/json",
"description": "Tx Intent Classifier: decodes the REAL intent of an on-chain transaction (Base/Ethereum) and returns an Ed25519-signed risk verdict (safe/review/suspicious/dangerous). Catches unlimited approvals, opaque selectors, value-to-contract, reverted tx. POST {\"tx_hash\":\"0x..\",\"chain\":\"base\"} or {\"to\":\"0x..\",\"data\":\"0x..\"}.",
"serviceName": "SYNTHORA"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"chain": "base",
"tx_hash": "0xafc895b0138314dcde8a410d309d9080c8cfbc816ba6f371b287e34f2695207f"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"ok": true,
"niche": "tx_intent",
"result": {},
"receipt": {}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object",
"required": [
"tx_hash"
],
"properties": {
"to": {
"type": "string"
},
"data": {
"type": "string"
},
"chain": {
"type": "string"
},
"tx_hash": {
"type": "string"
}
}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"ok": {
"type": "boolean"
},
"type": "object",
"niche": {
"type": "string"
}
}
}
}
}
}
},
"delivery": {
"note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
"order": "compute -> failure gate -> verify -> settle -> deliver",
"scope": "this covers service FAILURE, not verdict quality",
"policy": "no-charge-on-service-failure",
"verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
"behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
},
"signature": {
"alg": "ed25519",
"canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
"verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
"jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
"envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
"sigEncoding": "hex(64B raw)",
"publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
}
},
"x402Version": 2
},
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x10800a5a5B9d72251566EC651E862A8b4B427dE0",
"amount": "50000",
"scheme": "exact",
"network": "eip155:8453",
"mimeType": "application/json",
"resource": "https://api.hergertsynthora.com/v1/usgs-realtime-streamflow",
"description": "Returns real-time instantaneous streamflow (discharge) and gage height for any USGS water-monitoring site as JSON from USGS Water Services, keyless. Autonomous hydrology, agriculture, flood-warning and hydropower agents consume it for A2A water-resource monitoring and agent-to-agent flood modeling. Ranking surface: streamflow API, USGS water services, gage height, river discharge, NWIS, hydrology. Pay-per-call via x402 on Base. No charge on upstream failure.",
"maxAmountRequired": "50000",
"maxTimeoutSeconds": 300
}
],
"freeTier": {
"note": "send header X-WALLET: 0x<your Base address> for a free trial",
"header": "X-WALLET",
"callsPerWallet": 5
},
"resource": {
"url": "https://api.hergertsynthora.com/v1/usgs-realtime-streamflow",
"iconUrl": "https://api.hergertsynthora.com/icon.svg",
"mimeType": "application/json",
"description": "Returns real-time instantaneous streamflow (discharge) and gage height for any USGS water-monitoring site as JSON from USGS Water Services, keyless. Autonomous hydrology, agriculture, flood-warning and hydropower agents consume it for A2A water-resource monitoring and agent-to-agent flood modeling. Ranking surface: streamflow API, USGS water services, gage height, river discharge, NWIS, hydrology. Pay-per-call via x402 on Base. No charge on upstream failure.",
"serviceName": "SYNTHORA"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"site": "01646500"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"ok": true,
"niche": "usgs_realtime_streamflow",
"result": {},
"receipt": {}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object",
"properties": {
"input": {
"type": "string",
"description": "Returns real-time instantaneous streamflow (discharge) and gage height for any USGS water-monitoring site as JSON from USGS Water Services, keyless. Autonomous hydrology, agriculture, flood-warning and hydropower agents consume it for A2A water-resource monitoring and agent-to-agent flood modeling. Ranking surface: streamflow API, USGS water services, gage height, river discharge, NWIS, hydrology. Pay-per-call via x402 on Base. No charge on upstream failure."
}
}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"ok": {
"type": "boolean"
},
"type": "object",
"niche": {
"type": "string"
}
}
}
}
}
}
},
"delivery": {
"note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
"order": "compute -> failure gate -> verify -> settle -> deliver",
"scope": "this covers service FAILURE, not verdict quality",
"policy": "no-charge-on-service-failure",
"verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
"behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
},
"signature": {
"alg": "ed25519",
"canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
"verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
"jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
"envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
"sigEncoding": "hex(64B raw)",
"publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
}
},
"x402Version": 2
},
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x10800a5a5B9d72251566EC651E862A8b4B427dE0",
"amount": "150000",
"scheme": "exact",
"network": "eip155:8453",
"mimeType": "application/json",
"resource": "https://api.hergertsynthora.com/v1/wallet-enrich",
"description": "Wallet enrichment for any EVM wallet (0x address or ENS name) in one call: 0-100 risk score with low/medium/high level, sanctions exposure screening (OFAC SDN wallet lists: Tornado Cash, Lazarus, Garantex), on-chain activity on Ethereum + Base (native balance, transaction count, contract-vs-EOA detection) and labels (ENS reverse record, GoPlus address-security flags: phishing, mixer, cybercrime, money laundering, blacklist). Built for agents that need wallet enrichment + risk + sanctions data before paying, onboarding or transacting with a counterparty. No charge on service failure. Ed25519-signed. $0.15 USDC per call via x402 on Base. Free trial: 3 calls per wallet with header X-WALLET.",
"maxAmountRequired": "150000",
"maxTimeoutSeconds": 300
}
],
"freeTier": {
"note": "send header X-WALLET: 0x<your Base address> for a free trial",
"header": "X-WALLET",
"callsPerWallet": 3
},
"resource": {
"url": "https://api.hergertsynthora.com/v1/wallet-enrich",
"iconUrl": "https://api.hergertsynthora.com/icon.svg",
"mimeType": "application/json",
"description": "Wallet enrichment for any EVM wallet (0x address or ENS name) in one call: 0-100 risk score with low/medium/high level, sanctions exposure screening (OFAC SDN wallet lists: Tornado Cash, Lazarus, Garantex), on-chain activity on Ethereum + Base (native balance, transaction count, contract-vs-EOA detection) and labels (ENS reverse record, GoPlus address-security flags: phishing, mixer, cybercrime, money laundering, blacklist). Built for agents that need wallet enrichment + risk + sanctions data before paying, onboarding or transacting with a counterparty. No charge on service failure. Ed25519-signed. $0.15 USDC per call via x402 on Base. Free trial: 3 calls per wallet with header X-WALLET.",
"serviceName": "SYNTHORA"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"address": "vitalik.eth"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"ok": true,
"niche": "wallet_enrich",
"result": {
"ens": "vitalik.eth",
"risk": {
"level": "low",
"score": 0,
"reasons": []
},
"labels": [
"ens:vitalik.eth"
],
"address": "0x...",
"activity": {
"ethereum": {
"tx_count": 0,
"balance_eth": 0,
"is_contract": false
}
},
"sanctions": {
"match": null,
"status": "CLEAR",
"lists_checked": [
"OFAC_SDN_wallets"
]
}
}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object",
"required": [
"address"
],
"properties": {
"address": {
"type": "string",
"description": "EVM wallet address (0x...) or ENS name (e.g. vitalik.eth)"
}
}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"ok": {
"type": "boolean"
},
"type": "object",
"niche": {
"type": "string"
}
}
}
}
}
}
},
"delivery": {
"note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
"order": "compute -> failure gate -> verify -> settle -> deliver",
"scope": "this covers service FAILURE, not verdict quality",
"policy": "no-charge-on-service-failure",
"verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
"behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
},
"signature": {
"alg": "ed25519",
"canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
"verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
"jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
"envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
"sigEncoding": "hex(64B raw)",
"publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
}
},
"x402Version": 2
},
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x10800a5a5B9d72251566EC651E862A8b4B427dE0",
"amount": "320000",
"scheme": "exact",
"network": "eip155:8453",
"mimeType": "application/json",
"resource": "https://api.hergertsynthora.com/v1/walletrep",
"description": "Score the risk and reputation of any EVM wallet address before you transact with it. Combines on-chain sanctions screening (Chainalysis oracle, TRM, OFAC) and GoPlus address-security flags (phishing, blacklist, mixer, malicious activity) with contract-vs-EOA detection, transaction history and balance into a 0-100 score and clean/suspicious/blacklisted tier. Use it for wallet screening, counterparty due diligence and KYT. Ed25519-signed. 0.01 USDC on Base.",
"maxAmountRequired": "320000",
"maxTimeoutSeconds": 300
}
],
"freeTier": {
"note": "send header X-WALLET: 0x<your Base address> for a free trial",
"header": "X-WALLET",
"callsPerWallet": 5
},
"resource": {
"url": "https://api.hergertsynthora.com/v1/walletrep",
"iconUrl": "https://api.hergertsynthora.com/icon.svg",
"mimeType": "application/json",
"description": "Score the risk and reputation of any EVM wallet address before you transact with it. Combines on-chain sanctions screening (Chainalysis oracle, TRM, OFAC) and GoPlus address-security flags (phishing, blacklist, mixer, malicious activity) with contract-vs-EOA detection, transaction history and balance into a 0-100 score and clean/suspicious/blacklisted tier. Use it for wallet screening, counterparty due diligence and KYT. Ed25519-signed. 0.01 USDC on Base.",
"serviceName": "SYNTHORA"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"chain": "ethereum",
"address": "0x28C6c06298d514Db089934071355E5743bf21d60"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"ok": true,
"niche": "wallet_rep",
"result": {
"flags": [],
"address": "0x...",
"tx_count": 0,
"risk_tier": "clean",
"sanctioned": false,
"is_contract": false,
"goplus_flags": [],
"reputation_score": 100,
"sanctions_sources": []
}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object",
"required": [
"address"
],
"properties": {
"chain": {
"enum": [
"base",
"ethereum"
],
"type": "string",
"description": "Chain (default base)"
},
"address": {
"type": "string",
"description": "EVM wallet address (0x...)"
}
}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"ok": {
"type": "boolean"
},
"type": "object",
"niche": {
"type": "string"
}
}
}
}
}
}
},
"delivery": {
"note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
"order": "compute -> failure gate -> verify -> settle -> deliver",
"scope": "this covers service FAILURE, not verdict quality",
"policy": "no-charge-on-service-failure",
"verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
"behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
},
"signature": {
"alg": "ed25519",
"canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
"verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
"jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
"envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
"sigEncoding": "hex(64B raw)",
"publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
}
},
"x402Version": 2
},
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x10800a5a5B9d72251566EC651E862A8b4B427dE0",
"amount": "50000",
"scheme": "exact",
"network": "eip155:8453",
"mimeType": "application/json",
"resource": "https://api.hergertsynthora.com/v1/websearch",
"description": "SYNTHORA websearch: keyless web search for AI agents. Give it a natural-language query and it returns ranked organic results (title, url, snippet) drawn from live multi-source search (DuckDuckGo HTML/Lite plus public SearXNG instances, with automatic fallback so it never returns empty when one source flakes). Optionally it also fetches the top result and extracts the main content as clean, token-budgeted markdown (answer_extract), so an agent can read the page without running its own crawler, browser or scraper. Use it to answer real-world questions, gather fresh facts, research a topic, find documentation or check what a site says, without maintaining a search index or paying for Google/Bing/Serper API keys. Resilient (short timeouts, multi-source), SSRF-hardened,.",
"maxAmountRequired": "50000",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://api.hergertsynthora.com/v1/websearch",
"tags": [
"search",
"entities",
"knowledge",
"x402",
"signed-verdict",
"usdc"
],
"iconUrl": "https://api.hergertsynthora.com/icon.svg",
"mimeType": "application/json",
"description": "SYNTHORA websearch: keyless web search for AI agents. Give it a natural-language query and it returns ranked organic results (title, url, snippet) drawn from live multi-source search (DuckDuckGo HTML/Lite plus public SearXNG instances, with automatic fallback so it never returns empty when one source flakes). Optionally it also fetches the top result and extracts the main content as clean, token-budgeted markdown (answer_extract), so an agent can read the page without running its own crawler, browser or scraper. Use it to answer real-world questions, gather fresh facts, research a topic, find documentation or check what a site says, without maintaining a search index or paying for Google/Bing/Serper API keys. Resilient (short timeouts, multi-source), SSRF-hardened,.",
"serviceName": "SYNTHORA"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"query": "latest x402 protocol spec",
"extract": true,
"max_results": 5
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"ok": true,
"niche": "websearch",
"result": {
"count": 5,
"query": "latest x402 protocol spec",
"source": "duckduckgo_html",
"results": [
{
"url": "https://example.com/spec",
"title": "x402 spec",
"snippet": "..."
}
],
"elapsed_ms": 1200,
"answer_source": "md_extract",
"answer_extract": {
"url": "https://example.com/spec",
"chars": 1234,
"title": "x402 spec",
"markdown": "# ...",
"extractor": "md_extract",
"tokens_estimate": 300
}
}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object",
"required": [
"query"
],
"properties": {
"query": {
"type": "string",
"description": "Natural-language search query"
},
"extract": {
"type": "boolean",
"description": "If true, also fetch the top result and return its main content as clean markdown (answer_extract). Default: auto (extracts when a first URL is available)."
},
"max_results": {
"type": "integer",
"description": "How many results to return (1-20, default 8)"
}
}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"ok": {
"type": "boolean"
},
"type": "object",
"niche": {
"type": "string"
}
}
}
}
}
}
},
"delivery": {
"note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
"order": "compute -> failure gate -> verify -> settle -> deliver",
"scope": "this covers service FAILURE, not verdict quality",
"policy": "no-charge-on-service-failure",
"verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
"behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
},
"signature": {
"alg": "ed25519",
"canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
"verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
"jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
"envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
"sigEncoding": "hex(64B raw)",
"publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
}
},
"x402Version": 2
},
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x10800a5a5B9d72251566EC651E862A8b4B427dE0",
"amount": "50000",
"scheme": "exact",
"network": "eip155:8453",
"mimeType": "application/json",
"resource": "https://api.hergertsynthora.com/v1/yahoo-equity-delayed-quote",
"description": "Delayed real-time quote and intraday OHLCV for any stock or ETF ticker (price, day high/low, 52-week range, volume) from Yahoo Finance's keyless chart endpoint (JSON). Powers autonomous equity-screening agents and agent-to-agent trading bots needing per-symbol quotes without an API key. Pay-per-call via x402 on Base. No charge on upstream failure.",
"maxAmountRequired": "50000",
"maxTimeoutSeconds": 300
}
],
"freeTier": {
"note": "send header X-WALLET: 0x<your Base address> for a free trial",
"header": "X-WALLET",
"callsPerWallet": 5
},
"resource": {
"url": "https://api.hergertsynthora.com/v1/yahoo-equity-delayed-quote",
"iconUrl": "https://api.hergertsynthora.com/icon.svg",
"mimeType": "application/json",
"description": "Delayed real-time quote and intraday OHLCV for any stock or ETF ticker (price, day high/low, 52-week range, volume) from Yahoo Finance's keyless chart endpoint (JSON). Powers autonomous equity-screening agents and agent-to-agent trading bots needing per-symbol quotes without an API key. Pay-per-call via x402 on Base. No charge on upstream failure.",
"serviceName": "SYNTHORA"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"range": "5d",
"symbol": "AAPL",
"interval": "1d"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"ok": true,
"niche": "yahoo_equity_delayed_quote",
"result": {},
"receipt": {}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object",
"properties": {
"input": {
"type": "string",
"description": "Delayed real-time quote and intraday OHLCV for any stock or ETF ticker (price, day high/low, 52-week range, volume) from Yahoo Finance's keyless chart endpoint (JSON). Powers autonomous equity-screening agents and agent-to-agent trading bots needing per-symbol quotes without an API key. Pay-per-call via x402 on Base. No charge on upstream failure."
}
}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"ok": {
"type": "boolean"
},
"type": "object",
"niche": {
"type": "string"
}
}
}
}
}
}
},
"delivery": {
"note": "unlike the signature -- which you verify BEFORE paying -- this one is checked afterwards, on-chain, from your own wallet",
"order": "compute -> failure gate -> verify -> settle -> deliver",
"scope": "this covers service FAILURE, not verdict quality",
"policy": "no-charge-on-service-failure",
"verify": "after a request of yours FAILS, check your own wallet on Base: no USDC settlement to our payTo will exist for it. If we had charged you, the transfer would be public and permanent",
"behaviour": "if the service FAILS (invalid input, timeout, stale cache, withdrawn product, malformed output) you receive 402 and are NOT charged"
},
"signature": {
"alg": "ed25519",
"canon": "json:sort_keys+separators(,:)+ensure_ascii+utf8",
"verify": "recompute canon from envelope.result, then VerifyKey(bytes.fromhex(pubkey)).verify(canon, bytes.fromhex(sig)) -- no name to trust, verify the signature yourself",
"jwksUrl": "https://api.hergertsynthora.com/.well-known/jwks.json",
"envelope": "{result, attestation:{alg,pubkey,sig,canon}}",
"sigEncoding": "hex(64B raw)",
"publicKeyUrl": "https://api.hergertsynthora.com/pubkey"
}
},
"x402Version": 2
}
] OVER TIME
All charts use the 30d selector; each series spans only the dates it has data for. Every series is also served as JSON at /api/v1/services/synthora/price, /scores, /volume and /buyers. On-chain volume and distinct buyers are measured over the service's settlement address and are a conservative undercount (only settlements that reach a measured facilitator are counted). The on-chain series roll up hourly, so the latest day can be up to about an hour behind; distinct buyers are counted per payout address, so a service that settles to more than one address is an upper bound.
UPTIME
30d UPTIME 100%
RESPONSE TIME
AVG RESP 70ms
PRICE (captured 402, USD)
Median across 49 endpoints. Use the selector to isolate one.
SUB-SCORES (uptime + x402 compliance)
checklist grew 11->14 on 2026-07-28; a step here is a metric change, not a regression
VOLUME (on-chain settlement, USD)
DISTINCT BUYERS
COMPLIANCE
13/14 checks pass · grade A · failing: declares the current x402 version (2)last 402 captured 2026-08-17 · last up 2026-08-17
- 402 payload captured
- accepts[] array present
- payTo address recoverable
- payTo at accepts[0].payTo (conformant shape)
- payTo is a valid on-chain address
- atomic price declared
- atomic price in a sane range
- asset (token) address declared
- network resolves to CAIP-2
- payment scheme declared
- served over HTTPS
- declares the current x402 version (2)
- EIP-712 domain parameters present on every EVM entry
- x402 v2 envelope delivered in the payment-required header
SITE PILLARS
- homepage reachable
- openapi doc
- pricing page
- llms.txt
- robots.txt
- terms page
recent checks (14) live · click to expand
TIME STATUS RESP CAUSE
● OK 80ms
● OK 49ms
● OK 69ms
● OK 64ms
● OK 69ms
● OK 73ms
● OK 81ms
● OK 64ms
● OK 82ms
● OK 93ms
● OK 90ms
● OK 58ms
● OK 56ms
● OK 57ms
EMBED THIS BADGE
// HTML
<a href="https://x402-list.com/services/synthora?utm_source=badge&utm_medium=referral&utm_campaign=embed"> <img src="https://x402-list.com/badge/synthora.svg" alt="SYNTHORA listed on x402-list" height="28"> </a>
// Markdown
[](https://x402-list.com/services/synthora?utm_source=badge&utm_medium=referral&utm_campaign=embed)
// HTML · live uptime variant
<a href="https://x402-list.com/services/synthora?utm_source=badge&utm_medium=referral&utm_campaign=embed"> <img src="https://x402-list.com/badge/synthora.svg?data=uptime" alt="SYNTHORA uptime on x402-list" height="28"> </a>